diff --git a/src/crate/theme/rtd/crate/static/css/ng/furo.scss b/src/crate/theme/rtd/crate/static/css/ng/furo.scss
index 4f29a93d..7ba19342 100644
--- a/src/crate/theme/rtd/crate/static/css/ng/furo.scss
+++ b/src/crate/theme/rtd/crate/static/css/ng/furo.scss
@@ -8,10 +8,10 @@
 **/
 
 // Import Furo's variables.
-@use "../../vendor/furo/styles/variables/layout" as *;
+@import "../../vendor/furo/styles/variables/layout";
 
 // Import Furo's components.
-@use "../../vendor/furo/styles/components/footer";
+@import "../../vendor/furo/styles/components/footer";
 
 // Sidebar: When primary sidebar is not collapsed, show its
 // content above all others.
diff --git a/src/crate/theme/rtd/crate/static/css/ng/index.scss b/src/crate/theme/rtd/crate/static/css/ng/index.scss
index 451f370e..8ae26e92 100644
--- a/src/crate/theme/rtd/crate/static/css/ng/index.scss
+++ b/src/crate/theme/rtd/crate/static/css/ng/index.scss
@@ -1,4 +1,4 @@
-@use "settings";
-@use "layout";
-@use "furo";
-@use "page-tools";
+@import "settings";
+@import "layout";
+@import "furo";
+@import "page-tools";
diff --git a/webpack.config.js b/webpack.config.js
index 2255f9c0..2d185a36 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -13,17 +13,7 @@ module.exports = {
                   { loader: "style-loader" },
                   { loader: "css-loader", options: { sourceMap: true } },
                   { loader: "postcss-loader", options: { sourceMap: true } },
-                  {
-                    loader: "sass-loader",
-                    options: {
-                      api: "modern-compiler",
-                      sourceMap: true,
-                      sassOptions: {
-                        // TODO: Remove this again when Furo theme has been fixed
-                        silenceDeprecations: ['import', 'global-builtin']
-                      }
-                    }
-                  },
+                  { loader: "sass-loader", options: { api: "legacy", sourceMap: true } },
                 ],
             },
             {