diff --git a/js-growzone/package-lock.json b/js-growzone/package-lock.json
index 457b607..65f8a6d 100644
--- a/js-growzone/package-lock.json
+++ b/js-growzone/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "name": "js-growzone",
       "devDependencies": {
-        "esbuild": "^0.28.1"
+        "esbuild": "0.28.1"
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
diff --git a/js-growzone/package.json b/js-growzone/package.json
index 1f51959..3a4856c 100644
--- a/js-growzone/package.json
+++ b/js-growzone/package.json
@@ -7,6 +7,6 @@
     "build": "npx esbuild src/cell.js --bundle --outfile=dist/cell.js --format=esm --platform=browser"
   },
   "devDependencies": {
-    "esbuild": "^0.28.1"
+    "esbuild": "0.28.1"
   }
 }