diff --git a/sorc/checkout.sh b/sorc/checkout.sh
index ed2844ec9e..9dea5ca5b1 100755
--- a/sorc/checkout.sh
+++ b/sorc/checkout.sh
@@ -95,7 +95,7 @@ if [[ ! -d gfs_wafs.fd ]] ; then
     rm -f ${topdir}/checkout-gfs_wafs.log
     git clone --recursive https://github.com/NOAA-EMC/EMC_gfs_wafs.git gfs_wafs.fd >> ${topdir}/checkout-gfs_wafs.log 2>&1
     cd gfs_wafs.fd
-    git checkout gfs_wafs.v6.0.19
+    git checkout gfs_wafs.v6.0.20
     cd ${topdir}
 else
     echo 'Skip.  Directory gfs_wafs.fd already exists.'