diff --git a/scheme/cyclone/common.sld b/scheme/cyclone/common.sld
index 3e9a02d6..4cd33ccd 100644
--- a/scheme/cyclone/common.sld
+++ b/scheme/cyclone/common.sld
@@ -18,7 +18,7 @@
     memloc
   )
   (begin
-(define *version-number* "0.20")
+(define *version-number* "0.21")
 (define *version-name* "")
 (define *version* (string-append *version-number* " " *version-name* ""))