diff --git a/.github/workflows/generate-screenshots.yml b/.github/workflows/generate-screenshots.yml
index 70f1a63ff..ce8ea16ea 100644
--- a/.github/workflows/generate-screenshots.yml
+++ b/.github/workflows/generate-screenshots.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-bionic
+    runs-on: ubuntu-18.04
     steps:
       - uses: openrndr/setup-opengl@v1
       - uses: actions/checkout@v2
@@ -22,4 +22,4 @@ jobs:
           repository: .
           commit_user_name: edwinRNDR
           commit_user_email: edwin@rndr.studio
-          commit_author: edwinRNDR <edwin@rndr.studio>
\ No newline at end of file
+          commit_author: edwinRNDR <edwin@rndr.studio>