diff --git a/scripts/get_waf.sh b/scripts/get_waf.sh
index 28e5dfce7..ee941136b 100755
--- a/scripts/get_waf.sh
+++ b/scripts/get_waf.sh
@@ -3,7 +3,7 @@
 set -e
 #set -x
 
-WAFVERSION=2.0.20
+WAFVERSION=2.0.21
 WAFTARBALL=waf-$WAFVERSION.tar.bz2
 WAFURL=https://waf.io/$WAFTARBALL
 WAFUPSTREAMKEY=https://gitlab.com/ita1024/waf/raw/master/utils/pubkey.asc