diff --git a/C/ChemfilesViewer/Versions.toml b/C/ChemfilesViewer/Versions.toml
index c9a2a6a576b573f..afc4ce1616d7833 100644
--- a/C/ChemfilesViewer/Versions.toml
+++ b/C/ChemfilesViewer/Versions.toml
@@ -15,3 +15,6 @@ git-tree-sha1 = "c0a6255ff87723fc841f93afe393098a701a112b"
 
 ["0.5.0"]
 git-tree-sha1 = "e854856068362487f76086594719912a4fe35af1"
+
+["0.5.1"]
+git-tree-sha1 = "6a504ac0bacecc53ea33c2728f2a19fcce948769"