diff --git a/client/package.json b/client/package.json
index 05f4774..aa9ae79 100644
--- a/client/package.json
+++ b/client/package.json
@@ -63,16 +63,16 @@
         "jsdoc-vue": "*",
         "pegjs-loader": "*",
         "postcss": "*",
-        "postcss-loader": "*",
+        "postcss-loader": "^4.2",
         "postcss-preset-env": "*",
         "sass": "*",
-        "sass-loader": "*",
-        "style-loader": "*",
+        "sass-loader": "10.1",
+        "style-loader": "^2.0",
         "stylelint": "*",
         "stylelint-config-standard": "*",
         "vue-devtools": "*",
         "vue-eslint-parser": "*",
-        "vue-loader": "*",
+        "vue-loader": "^15",
         "webpack": "^4",
         "webpack-bundle-analyzer": "*",
         "webpack-cli": "*",