diff --git a/configure.ac b/configure.ac
index 102ce53f8..91fd12040 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,7 +61,7 @@ CLUTTER_MIN_VERSION=1.3.14
 GOBJECT_INTROSPECTION_MIN_VERSION=0.6.11
 GJS_MIN_VERSION=0.7
 MUTTER_MIN_VERSION=2.91.0
-GTK_MIN_VERSION=2.90.7
+GTK_MIN_VERSION=2.91.0
 GIO_MIN_VERSION=2.25.9
 
 # Collect more than 20 libraries for a prize!