diff --git a/benchmark/package.json b/benchmark/package.json
index 4da6db4f7eaa97..2f05357b007ec6 100644
--- a/benchmark/package.json
+++ b/benchmark/package.json
@@ -33,7 +33,7 @@
     "react-redux": "^8.1.3",
     "redux": "^4.2.1",
     "serve-handler": "^6.1.5",
-    "styled-components": "^6.1.8",
+    "styled-components": "^6.1.9",
     "styled-system": "^5.1.5",
     "theme-ui": "^0.16.2",
     "webpack": "^5.91.0"
diff --git a/docs/package.json b/docs/package.json
index ee69bb478f12c1..56c2d2a0d2edfa 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -105,7 +105,7 @@
     "react-virtuoso": "^4.7.10",
     "react-window": "^1.8.10",
     "rimraf": "^5.0.5",
-    "styled-components": "^6.1.8",
+    "styled-components": "^6.1.9",
     "stylis": "4.2.0",
     "stylis-plugin-rtl": "^2.1.1",
     "use-count-up": "^3.0.1",
diff --git a/packages/mui-styled-engine-sc/package.json b/packages/mui-styled-engine-sc/package.json
index 13146f5c5d5824..de8ea5cf0a1b71 100644
--- a/packages/mui-styled-engine-sc/package.json
+++ b/packages/mui-styled-engine-sc/package.json
@@ -50,7 +50,7 @@
     "@types/react": "^18.2.55",
     "chai": "^4.4.1",
     "react": "^18.2.0",
-    "styled-components": "^6.1.8"
+    "styled-components": "^6.1.9"
   },
   "peerDependencies": {
     "styled-components": "^6.0.0"
diff --git a/packages/mui-system/package.json b/packages/mui-system/package.json
index c2503342b72824..a44e1c4b7e51da 100644
--- a/packages/mui-system/package.json
+++ b/packages/mui-system/package.json
@@ -63,7 +63,7 @@
     "lodash": "^4.17.21",
     "react": "^18.2.0",
     "sinon": "^15.2.0",
-    "styled-components": "^6.1.8"
+    "styled-components": "^6.1.9"
   },
   "peerDependencies": {
     "@emotion/react": "^11.5.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9e25e264d7e826..69dab9df9747a1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -560,8 +560,8 @@ importers:
         specifier: ^6.1.5
         version: 6.1.5
       styled-components:
-        specifier: ^6.1.8
-        version: 6.1.8(react-dom@18.2.0)(react@18.2.0)
+        specifier: ^6.1.9
+        version: 6.1.9(react-dom@18.2.0)(react@18.2.0)
       styled-system:
         specifier: ^5.1.5
         version: 5.1.5
@@ -833,8 +833,8 @@ importers:
         specifier: ^5.0.5
         version: 5.0.5
       styled-components:
-        specifier: ^6.1.8
-        version: 6.1.8(react-dom@18.2.0)(react@18.2.0)
+        specifier: ^6.1.9
+        version: 6.1.9(react-dom@18.2.0)(react@18.2.0)
       stylis:
         specifier: 4.2.0
         version: 4.2.0
@@ -1900,8 +1900,8 @@ importers:
         specifier: ^18.2.0
         version: 18.2.0
       styled-components:
-        specifier: ^6.1.8
-        version: 6.1.8(react-dom@18.2.0)(react@18.2.0)
+        specifier: ^6.1.9
+        version: 6.1.9(react-dom@18.2.0)(react@18.2.0)
     publishDirectory: build
 
   packages/mui-styles:
@@ -2060,8 +2060,8 @@ importers:
         specifier: ^15.2.0
         version: 15.2.0
       styled-components:
-        specifier: ^6.1.8
-        version: 6.1.8(react-dom@18.2.0)(react@18.2.0)
+        specifier: ^6.1.9
+        version: 6.1.9(react-dom@18.2.0)(react@18.2.0)
     publishDirectory: build
 
   packages/mui-types:
@@ -2362,8 +2362,8 @@ importers:
         specifier: ^15.2.0
         version: 15.2.0
       styled-components:
-        specifier: ^6.1.8
-        version: 6.1.8(react-dom@18.2.0)(react@18.2.0)
+        specifier: ^6.1.9
+        version: 6.1.9(react-dom@18.2.0)(react@18.2.0)
       stylis:
         specifier: 4.2.0
         version: 4.2.0
@@ -4360,9 +4360,6 @@ packages:
       '@types/react': 18.2.55
       react: 18.2.0
 
-  /@emotion/unitless@0.8.0:
-    resolution: {integrity: sha512-VINS5vEYAscRl2ZUDiT3uMPlrFQupiKgHz5AA4bCH1miKBg4qtwkim1qPmJj/4WG6TreYMY111rEFsjupcOKHw==}
-
   /@emotion/unitless@0.8.1:
     resolution: {integrity: sha512-KOEGMu6dmJZtpadb476IsZBclKvILjopjUii3V+7MnXIQCYh8W3NgNcgwo21n9LXZX6EDIKvqfjYxXebDwxKmQ==}
 
@@ -6061,7 +6058,6 @@ packages:
 
   /@next/env@14.2.3:
     resolution: {integrity: sha512-W7fd7IbkfmeeY2gXrzJYDx8D2lWKbVoTIj1o1ScPHNzvp30s1AuoEFSdr39bC5sjxJaxTtq3OTCZboNp0lNWHA==}
-    dev: false
 
   /@next/eslint-plugin-next@14.2.3:
     resolution: {integrity: sha512-L3oDricIIjgj1AVnRdRor21gI7mShlSwU/1ZGHmqM3LzHhXXhdkrfeNY5zif25Bi5Dd7fiJHsbhoZCHfXYvlAw==}
@@ -20147,15 +20143,15 @@ packages:
     resolution: {integrity: sha512-Dj1Okke1C3uKKwQcetra4jSuk0DqbzbYtXipzFlFMZtowbF1x7BKJwB9AayVMyFARvU8EDrZdcax4At/452cAg==}
     dev: true
 
-  /styled-components@6.1.8(react-dom@18.2.0)(react@18.2.0):
-    resolution: {integrity: sha512-PQ6Dn+QxlWyEGCKDS71NGsXoVLKfE1c3vApkvDYS5KAK+V8fNWGhbSUEo9Gg2iaID2tjLXegEW3bZDUGpofRWw==}
+  /styled-components@6.1.9(react-dom@18.2.0)(react@18.2.0):
+    resolution: {integrity: sha512-aBOqs0uMsYufFXSE4q6cA6Ty1fwZuMk4BJRHfiGSna59F1otnxiDelwhN4fEwmBtIymmF0ZqXHnpSigr2ps9Cg==}
     engines: {node: '>= 16'}
     peerDependencies:
       react: '>= 16.8.0'
       react-dom: '>= 16.8.0'
     dependencies:
       '@emotion/is-prop-valid': 1.2.1
-      '@emotion/unitless': 0.8.0
+      '@emotion/unitless': 0.8.1
       '@types/stylis': 4.2.0
       css-to-react-native: 3.2.0
       csstype: 3.1.2
diff --git a/test/package.json b/test/package.json
index f076a098c2c617..0a63bd95aa6447 100644
--- a/test/package.json
+++ b/test/package.json
@@ -36,7 +36,7 @@
     "react-is": "^18.2.0",
     "react-router-dom": "^6.22.3",
     "sinon": "^15.2.0",
-    "styled-components": "^6.1.8",
+    "styled-components": "^6.1.9",
     "stylis": "4.2.0",
     "stylis-plugin-rtl": "^2.1.1",
     "stylis-plugin-rtl-sc": "npm:stylis-plugin-rtl@^1.1.0",