diff --git a/package.json b/package.json
index c6445169f..08f95a0a9 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "lint:eslint": "eslint --ext .js,.html .",
     "lint:prettier": "prettier \"**/*.js\" --list-different || (echo '↑↑ these files are not prettier formatted ↑↑' && exit 1)",
     "lint:markdownlint": "git ls-files '*.md' | xargs markdownlint --ignore '**/CHANGELOG.md'",
+    "lint:versions": "node ./scripts/lint-versions.js",
     "format": "npm run format:eslint && npm run format:prettier",
     "format:eslint": "eslint --ext .js,.html . --fix",
     "format:prettier": "prettier \"**/*.{js,md}\" --write"
@@ -66,6 +67,9 @@
       "markdownlint",
       "git add"
     ],
+    "*package.json": [
+      "node ./scripts/lint-versions.js"
+    ],
     "yarn.lock": [
       "node ./scripts/yarn-lock-scan.js"
     ]
diff --git a/packages/ajax/package.json b/packages/ajax/package.json
index 2501237d7..03e75d183 100644
--- a/packages/ajax/package.json
+++ b/packages/ajax/package.json
@@ -33,7 +33,7 @@
   ],
   "dependencies": {
     "@bundled-es-modules/axios": "0.18.1",
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/button/package.json b/packages/button/package.json
index 14c6aef23..eb505eedc 100644
--- a/packages/button/package.json
+++ b/packages/button/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
-    "@lion/form": "^0.3.6",
-    "@lion/icon": "^0.2.9",
-    "@lion/input": "^0.3.6",
+    "@lion/form": "0.3.6",
+    "@lion/icon": "0.2.9",
+    "@lion/input": "0.3.6",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "@polymer/iron-test-helpers": "^3.0.1",
diff --git a/packages/calendar/package.json b/packages/calendar/package.json
index 112216f4c..80b4f8a4f 100644
--- a/packages/calendar/package.json
+++ b/packages/calendar/package.json
@@ -33,11 +33,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/localize": "^0.7.0"
+    "@lion/core": "0.3.0",
+    "@lion/localize": "0.7.0"
   },
   "devDependencies": {
-    "@lion/button": "^0.3.44",
+    "@lion/button": "0.3.44",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/checkbox-group/package.json b/packages/checkbox-group/package.json
index e3509799c..c826e4d38 100644
--- a/packages/checkbox-group/package.json
+++ b/packages/checkbox-group/package.json
@@ -32,13 +32,13 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/fieldset": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/fieldset": "0.5.0"
   },
   "devDependencies": {
-    "@lion/checkbox": "^0.2.8",
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0",
+    "@lion/checkbox": "0.2.8",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/checkbox/package.json b/packages/checkbox/package.json
index 606d89db5..7669acced 100644
--- a/packages/checkbox/package.json
+++ b/packages/checkbox/package.json
@@ -32,9 +32,9 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/choice-input": "^0.4.6",
-    "@lion/core": "^0.3.0",
-    "@lion/input": "^0.3.6"
+    "@lion/choice-input": "0.4.6",
+    "@lion/core": "0.3.0",
+    "@lion/input": "0.3.6"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/choice-input/package.json b/packages/choice-input/package.json
index 5ac5a13e8..7e5f7791b 100644
--- a/packages/choice-input/package.json
+++ b/packages/choice-input/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5"
   },
   "devDependencies": {
-    "@lion/input": "^0.3.6",
-    "@lion/validate": "^0.5.0",
+    "@lion/input": "0.3.6",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/dialog/package.json b/packages/dialog/package.json
index fad651211..57bb1f885 100644
--- a/packages/dialog/package.json
+++ b/packages/dialog/package.json
@@ -30,8 +30,8 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/overlays": "^0.7.0"
+    "@lion/core": "0.3.0",
+    "@lion/overlays": "0.7.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/field/package.json b/packages/field/package.json
index 02619b4f9..c9b2a3b8c 100644
--- a/packages/field/package.json
+++ b/packages/field/package.json
@@ -33,11 +33,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
-    "@lion/localize": "^0.7.0",
+    "@lion/localize": "0.7.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/fieldset/package.json b/packages/fieldset/package.json
index 92a64ea66..efdd6d3ae 100644
--- a/packages/fieldset/package.json
+++ b/packages/fieldset/package.json
@@ -32,13 +32,13 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
-    "@lion/input": "^0.3.6",
-    "@lion/localize": "^0.7.0",
+    "@lion/input": "0.3.6",
+    "@lion/localize": "0.7.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/form-system/package.json b/packages/form-system/package.json
index f1251b4d3..e4f8d955c 100644
--- a/packages/form-system/package.json
+++ b/packages/form-system/package.json
@@ -32,22 +32,22 @@
     "*.js"
   ],
   "devDependencies": {
-    "@lion/checkbox": "^0.2.8",
-    "@lion/checkbox-group": "^0.3.6",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/fieldset": "^0.5.0",
-    "@lion/form": "^0.3.6",
-    "@lion/input": "^0.3.6",
-    "@lion/input-amount": "^0.3.6",
-    "@lion/input-date": "^0.3.6",
-    "@lion/input-email": "^0.3.6",
-    "@lion/input-iban": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/radio": "^0.2.8",
-    "@lion/radio-group": "^0.3.6",
-    "@lion/textarea": "^0.3.6",
-    "@lion/validate": "^0.5.0",
+    "@lion/checkbox": "0.2.8",
+    "@lion/checkbox-group": "0.3.6",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/fieldset": "0.5.0",
+    "@lion/form": "0.3.6",
+    "@lion/input": "0.3.6",
+    "@lion/input-amount": "0.3.6",
+    "@lion/input-date": "0.3.6",
+    "@lion/input-email": "0.3.6",
+    "@lion/input-iban": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/radio": "0.2.8",
+    "@lion/radio-group": "0.3.6",
+    "@lion/textarea": "0.3.6",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/form/package.json b/packages/form/package.json
index 32cdfd987..7858e6623 100644
--- a/packages/form/package.json
+++ b/packages/form/package.json
@@ -32,14 +32,14 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/fieldset": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/fieldset": "0.5.0"
   },
   "devDependencies": {
-    "@lion/input": "^0.3.6",
-    "@lion/input-iban": "^0.3.6",
-    "@lion/textarea": "^0.3.6",
-    "@lion/validate": "^0.5.0",
+    "@lion/input": "0.3.6",
+    "@lion/input-iban": "0.3.6",
+    "@lion/textarea": "0.3.6",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/icon/package.json b/packages/icon/package.json
index 0d15c071a..2821500e9 100644
--- a/packages/icon/package.json
+++ b/packages/icon/package.json
@@ -32,7 +32,7 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/input-amount/package.json b/packages/input-amount/package.json
index ec685615d..f2f66954c 100644
--- a/packages/input-amount/package.json
+++ b/packages/input-amount/package.json
@@ -32,11 +32,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/input": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/input": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/input-date/package.json b/packages/input-date/package.json
index 926c10b5f..a4260d1ce 100644
--- a/packages/input-date/package.json
+++ b/packages/input-date/package.json
@@ -32,11 +32,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/input": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/input": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/input-datepicker/package.json b/packages/input-datepicker/package.json
index 544ea5f63..fa19200a2 100644
--- a/packages/input-datepicker/package.json
+++ b/packages/input-datepicker/package.json
@@ -36,16 +36,16 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/calendar": "^0.4.0",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/input-date": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/overlays": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/calendar": "0.4.0",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/input-date": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/overlays": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
-    "@lion/button": "^0.3.44",
+    "@lion/button": "0.3.44",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/input-email/package.json b/packages/input-email/package.json
index dca504250..dba384cfa 100644
--- a/packages/input-email/package.json
+++ b/packages/input-email/package.json
@@ -32,11 +32,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/input": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/input": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/input-iban/package.json b/packages/input-iban/package.json
index 620151fde..21010ddd0 100644
--- a/packages/input-iban/package.json
+++ b/packages/input-iban/package.json
@@ -33,11 +33,11 @@
   ],
   "dependencies": {
     "@bundled-es-modules/ibantools": "2.0.0",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/input": "^0.3.6",
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/input": "0.3.6",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/input/package.json b/packages/input/package.json
index 623c96cd0..2f0caafa0 100644
--- a/packages/input/package.json
+++ b/packages/input/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5"
   },
   "devDependencies": {
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/localize/package.json b/packages/localize/package.json
index 0fe5b5781..a28229e03 100644
--- a/packages/localize/package.json
+++ b/packages/localize/package.json
@@ -34,7 +34,7 @@
   ],
   "dependencies": {
     "@bundled-es-modules/message-format": "6.0.4",
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
     "@bundled-es-modules/fetch-mock": "^6.5.2",
diff --git a/packages/option/package.json b/packages/option/package.json
index 1814246ec..f8096eee2 100644
--- a/packages/option/package.json
+++ b/packages/option/package.json
@@ -32,9 +32,9 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/choice-input": "^0.4.6",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5"
+    "@lion/choice-input": "0.4.6",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/overlays/package.json b/packages/overlays/package.json
index cbdb476a7..3d1d30f5f 100644
--- a/packages/overlays/package.json
+++ b/packages/overlays/package.json
@@ -34,7 +34,7 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
+    "@lion/core": "0.3.0",
     "popper.js": "^1.15.0"
   },
   "devDependencies": {
diff --git a/packages/popup/package.json b/packages/popup/package.json
index dfb0a5c6a..55765ca0c 100644
--- a/packages/popup/package.json
+++ b/packages/popup/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/overlays": "^0.7.0"
+    "@lion/core": "0.3.0",
+    "@lion/overlays": "0.7.0"
   },
   "devDependencies": {
-    "@lion/button": "^0.3.44",
-    "@lion/icon": "^0.2.9",
+    "@lion/button": "0.3.44",
+    "@lion/icon": "0.2.9",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/radio-group/package.json b/packages/radio-group/package.json
index b14bd52d1..605760c7d 100644
--- a/packages/radio-group/package.json
+++ b/packages/radio-group/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/fieldset": "^0.5.0"
+    "@lion/core": "0.3.0",
+    "@lion/fieldset": "0.5.0"
   },
   "devDependencies": {
-    "@lion/radio": "^0.2.8",
-    "@lion/validate": "^0.5.0",
+    "@lion/radio": "0.2.8",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/radio/package.json b/packages/radio/package.json
index 451f51711..f968042ee 100644
--- a/packages/radio/package.json
+++ b/packages/radio/package.json
@@ -32,9 +32,9 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/choice-input": "^0.4.6",
-    "@lion/core": "^0.3.0",
-    "@lion/input": "^0.3.6"
+    "@lion/choice-input": "0.4.6",
+    "@lion/core": "0.3.0",
+    "@lion/input": "0.3.6"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/select-rich/package.json b/packages/select-rich/package.json
index 5bbff06bc..a59676e9e 100644
--- a/packages/select-rich/package.json
+++ b/packages/select-rich/package.json
@@ -36,15 +36,15 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/button": "^0.3.44",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
-    "@lion/option": "^0.3.6",
-    "@lion/overlays": "^0.7.0",
-    "@lion/validate": "^0.5.0"
+    "@lion/button": "0.3.44",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
+    "@lion/option": "0.3.6",
+    "@lion/overlays": "0.7.0",
+    "@lion/validate": "0.5.0"
   },
   "devDependencies": {
-    "@lion/form": "^0.3.6",
+    "@lion/form": "0.3.6",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/select/package.json b/packages/select/package.json
index dacc29e88..85e2ae210 100644
--- a/packages/select/package.json
+++ b/packages/select/package.json
@@ -32,11 +32,11 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5"
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5"
   },
   "devDependencies": {
-    "@lion/validate": "^0.5.0",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/steps/package.json b/packages/steps/package.json
index c7f21d87d..42c1c7a3b 100644
--- a/packages/steps/package.json
+++ b/packages/steps/package.json
@@ -32,7 +32,7 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/switch/package.json b/packages/switch/package.json
index 326a97389..b80ccd80d 100644
--- a/packages/switch/package.json
+++ b/packages/switch/package.json
@@ -32,14 +32,14 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/button": "^0.3.44",
-    "@lion/choice-input": "^0.4.6",
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5"
+    "@lion/button": "0.3.44",
+    "@lion/choice-input": "0.4.6",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5"
   },
   "devDependencies": {
-    "@lion/localize": "^0.7.0",
-    "@lion/validate": "^0.5.0",
+    "@lion/localize": "0.7.0",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4",
     "sinon": "^7.2.2"
diff --git a/packages/tabs/package.json b/packages/tabs/package.json
index adceefb25..c35057ed8 100644
--- a/packages/tabs/package.json
+++ b/packages/tabs/package.json
@@ -32,7 +32,7 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0"
+    "@lion/core": "0.3.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/textarea/package.json b/packages/textarea/package.json
index b265c8eaf..d69e16bf9 100644
--- a/packages/textarea/package.json
+++ b/packages/textarea/package.json
@@ -32,12 +32,12 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/field": "^0.6.5",
+    "@lion/core": "0.3.0",
+    "@lion/field": "0.6.5",
     "autosize": "4.0.2"
   },
   "devDependencies": {
-    "@lion/validate": "^0.5.0",
+    "@lion/validate": "0.5.0",
     "@open-wc/demoing-storybook": "^0.2.0",
     "@open-wc/testing": "^2.3.4"
   }
diff --git a/packages/tooltip/package.json b/packages/tooltip/package.json
index 56aaf15cd..f80c7dcd3 100644
--- a/packages/tooltip/package.json
+++ b/packages/tooltip/package.json
@@ -32,8 +32,8 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/overlays": "^0.7.0"
+    "@lion/core": "0.3.0",
+    "@lion/overlays": "0.7.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/packages/validate/package.json b/packages/validate/package.json
index d6cbdd473..3a57cb825 100644
--- a/packages/validate/package.json
+++ b/packages/validate/package.json
@@ -34,8 +34,8 @@
     "*.js"
   ],
   "dependencies": {
-    "@lion/core": "^0.3.0",
-    "@lion/localize": "^0.7.0"
+    "@lion/core": "0.3.0",
+    "@lion/localize": "0.7.0"
   },
   "devDependencies": {
     "@open-wc/demoing-storybook": "^0.2.0",
diff --git a/scripts/lint-versions.js b/scripts/lint-versions.js
new file mode 100644
index 000000000..19b19b867
--- /dev/null
+++ b/scripts/lint-versions.js
@@ -0,0 +1,79 @@
+/* eslint-disable no-console */
+const { readdirSync, existsSync, readFileSync } = require('fs');
+
+const getDirectories = source =>
+  readdirSync(source, { withFileTypes: true })
+    .filter(pathMeta => pathMeta.isDirectory())
+    .map(pathMeta => pathMeta.name);
+
+function readPackageJsonDeps(filePath) {
+  if (existsSync(filePath)) {
+    const jsonData = JSON.parse(readFileSync(filePath, 'utf-8'));
+    const merged = { ...jsonData.dependencies, ...jsonData.devDependencies };
+    const result = {};
+    Object.keys(merged).forEach(dep => {
+      if (merged[dep] && !merged[dep].includes('file:')) {
+        result[dep] = merged[dep];
+      }
+    });
+    return result;
+  }
+  return {};
+}
+
+function readPackageJsonNameVersion(filePath) {
+  if (existsSync(filePath)) {
+    const jsonData = JSON.parse(readFileSync(filePath, 'utf-8'));
+    const result = {};
+    result[jsonData.name] = `${jsonData.version}`;
+    return result;
+  }
+  return {};
+}
+
+function compareVersions(versionsA, versionsB) {
+  let output = '';
+  const newVersions = { ...versionsA };
+  Object.keys(versionsB).forEach(dep => {
+    if (versionsA[dep] && versionsB[dep] && versionsA[dep] !== versionsB[dep]) {
+      output += `  - "${dep}" should be "${versionsA[dep]}" but is "${versionsB[dep]}"\n`;
+    }
+    if (!newVersions[dep]) {
+      newVersions[dep] = versionsB[dep];
+    }
+  });
+
+  return {
+    output,
+    newVersions,
+  };
+}
+
+let currentVersions = readPackageJsonDeps('./package.json');
+let endReturn = 0;
+
+// find all versions in the monorepo
+getDirectories('./packages').forEach(subPackage => {
+  const filePath = `./packages/${subPackage}/package.json`;
+  currentVersions = { ...currentVersions, ...readPackageJsonNameVersion(filePath) };
+});
+
+// lint all versions in packages
+getDirectories('./packages').forEach(subPackage => {
+  const filePath = `./packages/${subPackage}/package.json`;
+  const subPackageVersions = readPackageJsonDeps(filePath);
+  const { output, newVersions } = compareVersions(currentVersions, subPackageVersions);
+  currentVersions = { ...newVersions };
+  if (output) {
+    console.log(`Version mismatches found in "${filePath}":`);
+    console.log(output);
+    console.log();
+    endReturn = 1;
+  }
+});
+
+if (endReturn === 0) {
+  console.log('All versions are aligned 💪');
+}
+
+process.exit(endReturn);