diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7a5a12b..0c7f72d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,7 @@
 
 on: 
   push: 
+  pull_request: 
 
 name: continuous integration
 
diff --git a/.github/workflows/check_file_import.yml b/.github/workflows/check_file_import.yml
index 73bcfd0..44b99f2 100644
--- a/.github/workflows/check_file_import.yml
+++ b/.github/workflows/check_file_import.yml
@@ -1,5 +1,6 @@
 on: 
   push: 
+  pull_request: 
 
 name: check file import