diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c64f172..cac9059 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,6 +11,8 @@ jobs:
     # This job runs on Linux
     runs-on: ubuntu-latest
     steps:
+    - name: Install GTK packages
+      run: sudo apt-get install build-essential libgtk2.0-dev
     - uses: actions/checkout@master
     - name: Cache choosenim
       id: cache-choosenim