diff --git a/C/ChainRules/Versions.toml b/C/ChainRules/Versions.toml
index c83ad4eebe44dc3..741616d09453ff9 100644
--- a/C/ChainRules/Versions.toml
+++ b/C/ChainRules/Versions.toml
@@ -192,3 +192,6 @@ git-tree-sha1 = "03d6db93779e0279903f5a9ff522b58bbc462b5d"
 
 ["0.7.39"]
 git-tree-sha1 = "b8a69afa605d7bd4437c949ffaba8496ff7634b3"
+
+["0.7.40"]
+git-tree-sha1 = "097722a98537a738e3e42bec069c63663292f991"