diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 83cfed09b..34c17b7f3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,6 @@ name: Test
 # Run CI on push, PR, and weekly.
 
 on:
-  push:
   pull_request:
   schedule:
     - cron: "0 0 * * 0 " # weekly
diff --git a/.github/workflows/cell_lib_test.yml b/.github/workflows/cell_lib_test.yml
index 7d5b08984..3a472af3a 100644
--- a/.github/workflows/cell_lib_test.yml
+++ b/.github/workflows/cell_lib_test.yml
@@ -3,7 +3,6 @@ name: Cell Library Tests
 # Run CI on push, PR, and weekly.
 
 on:
-  push:
   pull_request:
   schedule:
     - cron: "0 0 * * 0 " # weekly
diff --git a/.github/workflows/format.yaml b/.github/workflows/format.yaml
index 273c1122c..e4c84320e 100644
--- a/.github/workflows/format.yaml
+++ b/.github/workflows/format.yaml
@@ -3,7 +3,6 @@ name: Code Format
 # Run CI on push, PR, and weekly.
 
 on:
-  push:
   pull_request:
   schedule:
     - cron: "0 0 * * 0 " # weekly