diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index c6d0d5e502..c31c30e6f2 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -111,7 +111,7 @@ jobs:
       displayName: 'Install dependencies (i386 Linux)'
       condition: and(eq(variables['Agent.OS'], 'Linux'), eq(variables['CPU'], 'i386'))
 
-    - bash: brew install boehmgc make sfml
+    - bash: brew install boehmgc make sfml gtk+3
       displayName: 'Install dependencies (OSX)'
       condition: eq(variables['Agent.OS'], 'Darwin')