diff --git a/.github/workflows/bazel_cpu_rbe.yml b/.github/workflows/bazel_cpu_rbe.yml
index 4a2e2ecb7fe6..d0135b644323 100644
--- a/.github/workflows/bazel_cpu_rbe.yml
+++ b/.github/workflows/bazel_cpu_rbe.yml
@@ -11,6 +11,9 @@ on:
         options:
         - 'yes'
         - 'no'
+  pull_request:
+    branches:
+      - main
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
diff --git a/.github/workflows/bazel_gpu_rbe.yml b/.github/workflows/bazel_gpu_rbe.yml
index a7cf645b50b3..fef37648f43e 100644
--- a/.github/workflows/bazel_gpu_rbe.yml
+++ b/.github/workflows/bazel_gpu_rbe.yml
@@ -11,6 +11,9 @@ on:
         options:
         - 'yes'
         - 'no'
+  pull_request:
+    branches:
+      - main
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}