diff --git a/package.json b/package.json
index a53766a2c..0ee082b5d 100644
--- a/package.json
+++ b/package.json
@@ -75,12 +75,12 @@
     "babel-preset-es2015": "6.22.0",
     "babel-preset-react": "6.22.0",
     "bowser": "1.9.4",
-    "canvas": "^2.9.0",
+    "canvas": "2.9.0",
     "chromedriver": "96.0.0",
     "classnames": "2.2.5",
     "cookie": "0.4.1",
     "copy-webpack-plugin": "4.6.0",
-    "css-loader": "0.23.1",
+    "css-loader": "5.2.7",
     "email-validator": "2.0.4",
     "enzyme": "3.10.0",
     "enzyme-adapter-react-16": "1.14.0",
@@ -99,7 +99,7 @@
     "html-webpack-plugin": "3.2.0",
     "iso-3166-2": "0.4.0",
     "jest": "23.6.0",
-    "jest-canvas-mock": "^2.3.1",
+    "jest-canvas-mock": "2.3.1",
     "jest-junit": "12.0.0",
     "keymirror": "0.1.1",
     "lodash.bindall": "4.4.0",
@@ -108,9 +108,8 @@
     "lodash.mergewith": "4.6.2",
     "lodash.omit": "3.1.0",
     "lodash.uniqby": "4.7.0",
-    "mini-css-extract-plugin": "^1.6.2",
+    "mini-css-extract-plugin": "1.6.2",
     "minilog": "2.0.8",
-    "sass": "1.49.7",
     "pako": "0.2.8",
     "plotly.js": "1.47.4",
     "postcss": "8.4.6",
@@ -132,6 +131,7 @@
     "redux-mock-store": "1.5.4",
     "redux-thunk": "2.0.1",
     "regenerator-runtime": "0.13.9",
+    "sass": "1.49.7",
     "sass-loader": "10.2.1",
     "scratch-gui": "0.1.0-prerelease.20220303060838",
     "scratch-l10n": "3.14.20220303031540",
diff --git a/webpack.config.js b/webpack.config.js
index 9062bb286..afeffb4da 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -96,7 +96,12 @@ module.exports = {
                 test: /\.scss$/,
                 use: [
                     MiniCssExtractPlugin.loader,
-                    'css-loader',
+                    {
+                        loader: 'css-loader',
+                        options: {
+                            url: false
+                        }
+                    },
                     {
                         loader: 'postcss-loader',
                         options: {
@@ -114,7 +119,12 @@ module.exports = {
                 test: /\.css$/,
                 use: [
                     MiniCssExtractPlugin.loader,
-                    'css-loader',
+                    {
+                        loader: 'css-loader',
+                        options: {
+                            url: false
+                        }
+                    },
                     {
                         loader: 'postcss-loader',
                         options: {