diff --git a/package.json b/package.json
index 66dbda73..8056e223 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "postcss": "^8.3.0"
   },
   "devDependencies": {
-    "autoprefixer": "^10.2.6",
-    "postcss-cli": "^8.3.1"
+    "autoprefixer": "10.2.6",
+    "postcss-cli": "8.3.1"
   }
 }
diff --git a/themes/devrel/userguide/package.json b/themes/devrel/userguide/package.json
index a87e6820..481edcfb 100644
--- a/themes/devrel/userguide/package.json
+++ b/themes/devrel/userguide/package.json
@@ -18,7 +18,7 @@
   "homepage": "https://github.com/bep/tech-doc-hugo#readme",
   "dependencies": {},
   "devDependencies": {
-    "autoprefixer": "^9.5.0",
-    "postcss-cli": "^5.0.1"
+    "autoprefixer": "9.5.0",
+    "postcss-cli": "5.0.1"
   }
 }
diff --git a/themes/docsy/userguide/package.json b/themes/docsy/userguide/package.json
index a87e6820..481edcfb 100644
--- a/themes/docsy/userguide/package.json
+++ b/themes/docsy/userguide/package.json
@@ -18,7 +18,7 @@
   "homepage": "https://github.com/bep/tech-doc-hugo#readme",
   "dependencies": {},
   "devDependencies": {
-    "autoprefixer": "^9.5.0",
-    "postcss-cli": "^5.0.1"
+    "autoprefixer": "9.5.0",
+    "postcss-cli": "5.0.1"
   }
 }