diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 9f39383..2d10ca7 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -2,9 +2,9 @@ name: Build & Test
 
 on:
   push:
-    branches: [main]
+    branches: [main, '0.x']
   pull_request:
-    branches: [main]
+    branches: [main, '0.x']
 
 # Default token to read-only; jobs widen only what they need.
 permissions:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b98e747..1b1325f 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -2,9 +2,9 @@ name: CodeQL
 
 on:
   push:
-    branches: [main]
+    branches: [main, '0.x']
   pull_request:
-    branches: [main]
+    branches: [main, '0.x']
   schedule:
     - cron: '0 19 * * 4'