diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 92f0b8bc..ee9960fc 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -1,6 +1,6 @@
 name: Build and Test
 
-on: [push, pull_request]
+on: [pull_request]
 
 jobs:
   build_debian_derivatives:
diff --git a/.github/workflows/build_and_test_windows.yml b/.github/workflows/build_and_test_windows.yml
index 2f121b35..a995c45d 100644
--- a/.github/workflows/build_and_test_windows.yml
+++ b/.github/workflows/build_and_test_windows.yml
@@ -1,6 +1,6 @@
 name: Build and Test - Windows
 
-on: [push, pull_request]
+on: [pull_request]
 
 jobs:
   source:
diff --git a/.github/workflows/build_centos.yml b/.github/workflows/build_centos.yml
index b1fafd4b..ad10e5ff 100644
--- a/.github/workflows/build_centos.yml
+++ b/.github/workflows/build_centos.yml
@@ -1,4 +1,4 @@
-name: Release binaries
+name: CentOS binaries
 # This machine tests building the software on a both 32 and 64 Windows architecture.
 
 on: [push]
@@ -21,9 +21,11 @@ jobs:
     steps:
 
       - name: clone the Yubico/yubihsm-shell repository
-        uses: actions/checkout@v3
-        with:
-          path: yubihsm-shell
+        run: |
+          yum -y install git  
+          git clone https://github.com/Yubico/yubihsm-shell.git
+          pwd
+          ls yubihsm-shell
 
       - name: apply environment specific changes to CMakeLists.txt
         working-directory: yubihsm-shell
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 24d3747c..9501b471 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,7 +1,7 @@
 name: Release binaries
 # This machine tests building the software on a both 32 and 64 Windows architecture.
 
-on: [push]
+on: [pull_request]
 
 jobs: