diff --git a/README.md b/README.md
index b7fd62a..f0e57e7 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ python3 -m pip install discover-overlay
 
 Requirements should be handled by pip.
 
-Requires PyGTK3, websocket_client
+Requires PyGTK3 3.22 or newer, websocket_client
 
 A compositor is strongly advised but there is a non-compositor mode optionally
 
diff --git a/setup.py b/setup.py
index eb33bd6..ddeb0f8 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ setup(
         ('share/icons', ['discover.png'])
         ],
     install_requires = [
-        'PyGObject',
+        'PyGObject>=3.22',
         'websocket-client',
         'pyxdg',
         ],