diff --git a/checkm/VERSION b/checkm/VERSION
index bf8ce22..e3e27f4 100755
--- a/checkm/VERSION
+++ b/checkm/VERSION
@@ -1,3 +1,6 @@
+1.2.2
+- support gzipped protein files as input (thanks to alienzj for the PR)
+
 1.2.1
 - renamed private classes (thanks to misialq for the PR)