diff --git a/.github/workflows/build-on-pull-request.yml b/.github/workflows/build-on-pull-request.yml
index ef852228..468c8460 100644
--- a/.github/workflows/build-on-pull-request.yml
+++ b/.github/workflows/build-on-pull-request.yml
@@ -83,7 +83,7 @@ jobs:
       
   archive:
     needs: build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         os: [win64, win32]
@@ -115,7 +115,7 @@ jobs:
           
   release:
     needs: [build, archive]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Download FFmpeg archive win64
         uses: actions/download-artifact@v2
diff --git a/.github/workflows/build-on-push.yml b/.github/workflows/build-on-push.yml
index 7c698b54..01c29137 100644
--- a/.github/workflows/build-on-push.yml
+++ b/.github/workflows/build-on-push.yml
@@ -81,7 +81,7 @@ jobs:
       
   archive:
     needs: build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         os: [win64, win32]
@@ -113,7 +113,7 @@ jobs:
           
   release:
     needs: [build, archive]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Download FFmpeg archive win64
         uses: actions/download-artifact@v2
@@ -141,7 +141,7 @@ jobs:
           
   delete_old:
     name: Delete older pre-releases
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Delete older pre-releases
         uses: dev-drprasad/delete-older-releases@v0.2.0
diff --git a/dependencies.sh b/dependencies.sh
index e059372d..675a98a4 100755
--- a/dependencies.sh
+++ b/dependencies.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 sudo apt-get update
 sudo apt-get upgrade
 sudo apt-get install ragel cvs yasm pax nasm gperf autogen autoconf-archive