diff --git a/packages/gatsby-theme-aio/package.json b/packages/gatsby-theme-aio/package.json
index 25d54673b7..aea60f51b1 100644
--- a/packages/gatsby-theme-aio/package.json
+++ b/packages/gatsby-theme-aio/package.json
@@ -140,7 +140,7 @@
     "request": "^2.88.2",
     "sharp": "^0.31.0",
     "stream-http": "^3.2.0",
-    "styled-components": "^5.3.5",
+    "styled-components": "^5.3.9",
     "swiper": "^8.3.2",
     "to-arraybuffer": "^1.0.1",
     "tty-browserify": "^0.0.1",
diff --git a/yarn.lock b/yarn.lock
index e563a305df..ea1523f578 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -120,7 +120,7 @@ __metadata:
     request: ^2.88.2
     sharp: ^0.31.0
     stream-http: ^3.2.0
-    styled-components: ^5.3.5
+    styled-components: ^5.3.9
     swiper: ^8.3.2
     to-arraybuffer: ^1.0.1
     tty-browserify: ^0.0.1
@@ -21729,7 +21729,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"styled-components@npm:^5.3.0, styled-components@npm:^5.3.5":
+"styled-components@npm:^5.3.0":
   version: 5.3.8
   resolution: "styled-components@npm:5.3.8"
   dependencies:
@@ -21751,6 +21751,28 @@ __metadata:
   languageName: node
   linkType: hard
 
+"styled-components@npm:^5.3.9":
+  version: 5.3.9
+  resolution: "styled-components@npm:5.3.9"
+  dependencies:
+    "@babel/helper-module-imports": ^7.0.0
+    "@babel/traverse": ^7.4.5
+    "@emotion/is-prop-valid": ^1.1.0
+    "@emotion/stylis": ^0.8.4
+    "@emotion/unitless": ^0.7.4
+    babel-plugin-styled-components: ">= 1.12.0"
+    css-to-react-native: ^3.0.0
+    hoist-non-react-statics: ^3.0.0
+    shallowequal: ^1.1.0
+    supports-color: ^5.5.0
+  peerDependencies:
+    react: ">= 16.8.0"
+    react-dom: ">= 16.8.0"
+    react-is: ">= 16.8.0"
+  checksum: 404311cc7028259218674d3f9f39bdda2342fc02f2ebbba8f057ef560b2ad205c5bd63b82deed4d0bf217ac7eb960d0e1127510b0b606e32cbd5a48c10373ce8
+  languageName: node
+  linkType: hard
+
 "stylehacks@npm:^5.1.1":
   version: 5.1.1
   resolution: "stylehacks@npm:5.1.1"