diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 42f5d34b6..a28ba8a53 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -112,7 +112,9 @@ jobs:
             coreutils \
             gnu-sed \
             sqlite3 \
-            subversion
+            subversion \
+            gtk+3 \
+            pygobject3
 
           # add GNU coreutils and sed to the user PATH (for actions steps)
           # (see instructions in brew install output)