diff --git a/.github/workflows/c.yaml b/.github/workflows/c.yaml
index a51b012..029f65f 100644
--- a/.github/workflows/c.yaml
+++ b/.github/workflows/c.yaml
@@ -1,8 +1,6 @@
 name: C
 
-on:
-  push:
-    branches: "main"
+on: [push, pull_request]
 jobs:
   runtests:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/i386-linux-handwritten.yml b/.github/workflows/i386-linux-handwritten.yml
index 300285b..771de6a 100644
--- a/.github/workflows/i386-linux-handwritten.yml
+++ b/.github/workflows/i386-linux-handwritten.yml
@@ -1,8 +1,6 @@
 name: i386-linux-handwritten
 
-on:
-  push:
-    branches: "main"
+on: [push, pull_request]
 jobs:
   runtests:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/python.yaml b/.github/workflows/python.yaml
index e0e00ec..ac5d8e2 100644
--- a/.github/workflows/python.yaml
+++ b/.github/workflows/python.yaml
@@ -1,8 +1,6 @@
 name: python
 
-on:
-  push:
-    branches: "main"
+on: [push, pull_request]
 jobs:
   runtests:
     runs-on: ubuntu-latest