diff --git a/G/GMT/Versions.toml b/G/GMT/Versions.toml
index 95bf6b43072d140..5c712c8320bdbb2 100644
--- a/G/GMT/Versions.toml
+++ b/G/GMT/Versions.toml
@@ -270,3 +270,6 @@ git-tree-sha1 = "da62acd334c19728910428a79f83beb524e43f33"
 
 ["1.9.0"]
 git-tree-sha1 = "9300b8186ade75dc3b1ffc60b65629aa43735073"
+
+["1.9.1"]
+git-tree-sha1 = "f58aeec6d9d578f60940af3973978f1a19317262"