diff --git a/themes-default/slim/package.json b/themes-default/slim/package.json
index aae6256ec9..9ec96e6136 100644
--- a/themes-default/slim/package.json
+++ b/themes-default/slim/package.json
@@ -46,7 +46,7 @@
     "lodash": "4.17.21",
     "lozad": "1.16.0",
     "sass": "1.43.4",
-    "sass-loader": "12.3.0",
+    "sass-loader": "12.6.0",
     "style-loader": "3.3.3",
     "stylelint-scss": "3.21.0",
     "tablesorter": "2.31.3",
diff --git a/themes-default/slim/yarn.lock b/themes-default/slim/yarn.lock
index abb7657dc9..fb6c419344 100644
--- a/themes-default/slim/yarn.lock
+++ b/themes-default/slim/yarn.lock
@@ -10292,10 +10292,10 @@ sane@^4.0.3:
     minimist "^1.1.1"
     walker "~1.0.5"
 
-sass-loader@12.3.0:
-  version "12.3.0"
-  resolved "https://registry.yarnpkg.com/sass-loader/-/sass-loader-12.3.0.tgz#93278981c189c36a58cbfc37d4b9cef0cdc02871"
-  integrity sha512-6l9qwhdOb7qSrtOu96QQ81LVl8v6Dp9j1w3akOm0aWHyrTYtagDt5+kS32N4yq4hHk3M+rdqoRMH+lIdqvW6HA==
+sass-loader@12.6.0:
+  version "12.6.0"
+  resolved "https://registry.yarnpkg.com/sass-loader/-/sass-loader-12.6.0.tgz#5148362c8e2cdd4b950f3c63ac5d16dbfed37bcb"
+  integrity sha512-oLTaH0YCtX4cfnJZxKSLAyglED0naiYfNG1iXfU5w1LNZ+ukoA5DtyDIN5zmKVZwYNJP4KRc5Y3hkWga+7tYfA==
   dependencies:
     klona "^2.0.4"
     neo-async "^2.6.2"