diff --git a/packages/core/.stylelintrc.json b/packages/core/.stylelintrc.json
index 56a2b76c49..a6da2ad6f2 100644
--- a/packages/core/.stylelintrc.json
+++ b/packages/core/.stylelintrc.json
@@ -15,6 +15,7 @@
     "property-no-vendor-prefix": null,
     "selector-class-pattern": null,
     "selector-not-notation": "simple",
-    "selector-pseudo-element-colon-notation": "single"
+    "selector-pseudo-element-colon-notation": "single",
+    "declaration-no-important": [ true, { "severity": "warning" }]
   }
 }
diff --git a/packages/react/.stylelintrc.json b/packages/react/.stylelintrc.json
index af8790ff95..f166e33e5f 100644
--- a/packages/react/.stylelintrc.json
+++ b/packages/react/.stylelintrc.json
@@ -19,6 +19,7 @@
     "scss/percent-placeholder-pattern": "([a-z][A-z]*)",
     "selector-class-pattern": null,
     "selector-not-notation": "simple",
-    "selector-pseudo-element-colon-notation": "single"
+    "selector-pseudo-element-colon-notation": "single",
+    "declaration-no-important": [ true, { "severity": "warning" }]
   }
 }
diff --git a/site/.stylelintrc.json b/site/.stylelintrc.json
index 5820b71bd1..1d3f26e90a 100644
--- a/site/.stylelintrc.json
+++ b/site/.stylelintrc.json
@@ -16,6 +16,7 @@
     "scss/percent-placeholder-pattern": "([a-z][A-z]*)",
     "selector-class-pattern": null,
     "selector-not-notation": "simple",
-    "selector-pseudo-element-colon-notation": "single"
+    "selector-pseudo-element-colon-notation": "single",
+    "declaration-no-important": [ true, { "severity": "warning" }]
   }
 }