diff --git a/.github/workflows/miri.yml b/.github/workflows/miri.yml
index 7807cf49..af25676f 100644
--- a/.github/workflows/miri.yml
+++ b/.github/workflows/miri.yml
@@ -2,9 +2,9 @@ name: Miri
 
 on:
   push:
-    branches:
+    branches: ["main"]
   pull_request:
-    branches:
+    branches: ["main"]
 
 env:
   CARGO_TERM_COLOR: always
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 2db791d8..40595c68 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -2,9 +2,9 @@ name: Rust CI Pipeline
 
 on:
   push:
-    branches:
+    branches: ["main"]
   pull_request:
-    branches:
+    branches: ["main"]
 
 env:
   CARGO_TERM_COLOR: always