diff --git a/packages/lb-annotation/package.json b/packages/lb-annotation/package.json
index 7e60c4d0..e48a8dac 100644
--- a/packages/lb-annotation/package.json
+++ b/packages/lb-annotation/package.json
@@ -87,7 +87,7 @@
     "rollup": "^2.43.1",
     "rollup-plugin-esbuild": "^3.0.2",
     "rollup-plugin-svg": "^2.0.0",
-    "rollup-plugin-web-worker-loader": "^1.6.1",
+    "rollup-plugin-web-worker-loader": "1.6.1",
     "tslib": "^1.10.0",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
diff --git a/packages/lb-components/package.json b/packages/lb-components/package.json
index fa9a0761..324bed1d 100644
--- a/packages/lb-components/package.json
+++ b/packages/lb-components/package.json
@@ -114,7 +114,7 @@
     "rollup-plugin-esbuild": "^3.0.2",
     "rollup-plugin-postcss": "^4.0.2",
     "rollup-plugin-terser": "^7.0.2",
-    "rollup-plugin-web-worker-loader": "^1.6.1",
+    "rollup-plugin-web-worker-loader": "1.6.1",
     "sass": "^1.53.0",
     "typescript": "^4.2.3"
   },