diff --git a/zilti/packages/chicken.scm b/zilti/packages/chicken.scm
index 54eef5a..2eb206f 100644
--- a/zilti/packages/chicken.scm
+++ b/zilti/packages/chicken.scm
@@ -9149,7 +9149,7 @@
   chicken-fmt
   (package
     (name "chicken-fmt")
-    (version "0.8.11.2")
+    (version "0.8.11")
     (source
       (origin
         (method url-fetch)