diff --git a/samples/create-ic-fixed-rate-contract/client/package.json b/samples/create-ic-fixed-rate-contract/client/package.json
index 69e1a8d..59f2c89 100644
--- a/samples/create-ic-fixed-rate-contract/client/package.json
+++ b/samples/create-ic-fixed-rate-contract/client/package.json
@@ -33,9 +33,9 @@
     ]
   },
   "devDependencies": {
-    "nth-check": "^2.1.1",
-    "postcss": "^8.5.6",
-    "serialize-javascript": "^7.0.0",
-    "webpack-dev-server": "^5.2.2"
+    "nth-check": "2.0.1",
+    "postcss": "8.4.31",
+    "serialize-javascript": "6.0.2",
+    "webpack-dev-server": "5.2.1"
   }
-}
+}
\ No newline at end of file
diff --git a/samples/list-people/client/package.json b/samples/list-people/client/package.json
index 1504639..d26addc 100644
--- a/samples/list-people/client/package.json
+++ b/samples/list-people/client/package.json
@@ -33,9 +33,9 @@
     ]
   },
   "devDependencies": {
-    "nth-check": "^2.1.1",
-    "postcss": "^8.5.6",
-    "serialize-javascript": "^7.0.0",
-    "webpack-dev-server": "^5.2.2"
+    "nth-check": "2.0.1",
+    "postcss": "8.4.31",
+    "serialize-javascript": "6.0.2",
+    "webpack-dev-server": "5.2.1"
   }
-}
+}
\ No newline at end of file