diff --git a/client/config/webpack.config.dev.js b/client/config/webpack.config.dev.js
index 15789c34a..85fb88ebd 100644
--- a/client/config/webpack.config.dev.js
+++ b/client/config/webpack.config.dev.js
@@ -44,6 +44,9 @@ module.exports = {
             loader: 'sass-loader',
             options: {
               sourceMap: true,
+              sassOptions: {
+                silenceDeprecations: ['mixed-decls'],
+              },
             },
           },
         ],
diff --git a/client/config/webpack.config.prod.js b/client/config/webpack.config.prod.js
index 15a1e29ee..c7794859c 100644
--- a/client/config/webpack.config.prod.js
+++ b/client/config/webpack.config.prod.js
@@ -64,6 +64,9 @@ module.exports = {
             loader: 'sass-loader',
             options: {
               sourceMap: true,
+              sassOptions: {
+                silenceDeprecations: ['mixed-decls'],
+              },
             },
           },
         ],