diff --git a/.github/workflows/build_arduino.yml b/.github/workflows/build_arduino.yml
index c432a2f0..f1e0c243 100644
--- a/.github/workflows/build_arduino.yml
+++ b/.github/workflows/build_arduino.yml
@@ -1,7 +1,7 @@
 name: Arduino CLI build
 
 on:
-  pull_request_target:
+  pull_request:
     branches: [master]
     paths:
       - ".github/workflows/build_arduino.yml"
diff --git a/.github/workflows/build_linux.yml b/.github/workflows/build_linux.yml
index 406b614b..4df25ae7 100644
--- a/.github/workflows/build_linux.yml
+++ b/.github/workflows/build_linux.yml
@@ -1,7 +1,7 @@
 name: Linux build
 
 on:
-  pull_request_target:
+  pull_request:
     branches: [master]
     paths:
       - "*.h"
diff --git a/.github/workflows/build_platformIO.yml b/.github/workflows/build_platformIO.yml
index cf58b4e4..39a45955 100644
--- a/.github/workflows/build_platformIO.yml
+++ b/.github/workflows/build_platformIO.yml
@@ -1,7 +1,7 @@
 name: PlatformIO build
 
 on:
-  pull_request_target:
+  pull_request:
     branches: [master]
     paths:
       - ".github/workflows/build_platformIO.yml"
diff --git a/.github/workflows/build_rp2xxx.yml b/.github/workflows/build_rp2xxx.yml
index f6625d0a..d7b75eeb 100644
--- a/.github/workflows/build_rp2xxx.yml
+++ b/.github/workflows/build_rp2xxx.yml
@@ -12,7 +12,7 @@ on:
       - "cmake/"
       - "utility/rp2/*"
       - "examples_pico/*"
-  pull_request_target:
+  pull_request:
     branches: [master]
     paths:
       - ".github/workflows/build_rp2xxx.yml"
diff --git a/.github/workflows/clang_format.yml b/.github/workflows/clang_format.yml
index ea19c45e..79d1ea39 100644
--- a/.github/workflows/clang_format.yml
+++ b/.github/workflows/clang_format.yml
@@ -3,7 +3,7 @@ name: check code formatting
 on:
     push:
         branches: [master]
-    pull_request_target:
+    pull_request:
         branches: [master]
 
 jobs: