diff --git a/Externals.cfg b/Externals.cfg
index 3d19a30238..3de378883c 100644
--- a/Externals.cfg
+++ b/Externals.cfg
@@ -43,7 +43,7 @@ protocol = git
 required = True
 
 [EMC_gfs_wafs]
-tag = gfs_wafs.v6.0.20
+tag = gfs_wafs.v6.0.21
 local_path = sorc/gfs_wafs.fd
 repo_url = https://github.com/NOAA-EMC/EMC_gfs_wafs.git
 protocol = git
diff --git a/sorc/checkout.sh b/sorc/checkout.sh
index 9dea5ca5b1..a4cd7d2ede 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.v6.0.20
+    git checkout gfs_wafs.v6.0.21
     cd ${topdir}
 else
     echo 'Skip.  Directory gfs_wafs.fd already exists.'