diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index e161bdd..7d20478 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -1,6 +1,6 @@
 name: macos
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
diff --git a/.github/workflows/ubuntu-rvm.yml b/.github/workflows/ubuntu-rvm.yml
index b27cfd4..7806dce 100644
--- a/.github/workflows/ubuntu-rvm.yml
+++ b/.github/workflows/ubuntu-rvm.yml
@@ -1,6 +1,6 @@
 name: ubuntu-rvm
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 6f08a83..3dcf1c3 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -1,6 +1,6 @@
 name: ubuntu
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index fd22991..22d4167 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -1,6 +1,6 @@
 name: windows
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build: