diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index f7f72df90..4a38ba869 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -1,7 +1,7 @@
 name: Lint Code Base
 
 on:
-  push:
+  pull_request:
     branches-ignore:
       - 'master'
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index fa0475149..9ff7964f3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,6 +1,6 @@
 name: Test and build
 
-on: [push]
+on: [pull_request]
 
 jobs:
   build:
@@ -16,7 +16,7 @@ jobs:
       run: |
         sudo apt-get update -y
         sudo apt-get install -y devscripts debhelper moreutils fakeroot jq pigz
-        wget "https://storage.googleapis.com/shellcheck/shellcheck-v0.7.0.linux.x86_64.tar.xz"
+        wget "https://github.com/koalaman/shellcheck/releases/download/v0.7.0/shellcheck-v0.7.0.linux.x86_64.tar.xz"
         tar --xz -xvf "shellcheck-v0.7.0.linux.x86_64.tar.xz"
         sudo cp shellcheck-v0.7.0/shellcheck /usr/bin/shellcheck
       if: matrix.os == 'ubuntu-latest'