diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 31f3d5c..035ba53 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -26,6 +26,7 @@ jobs:
         run: |
             sudo apt-get update
             sudo apt-get install libsdl2-dev
+            sudo apt-get install libgtk-3-dev
       - name: prepare-windows
         if: runner.os == 'Windows'
         run: |