diff --git a/Externals.cfg b/Externals.cfg
index a8a77a40f1..cb2622dedf 100644
--- a/Externals.cfg
+++ b/Externals.cfg
@@ -27,10 +27,10 @@ tag = mosart1_0_49
 required = True
 
 [mizuRoute]
-local_path = components/mizuRoute
+tag = cesm-coupling.n02_v2.1.2
 protocol = git
+local_path = components/mizuroute
 repo_url = https://github.com/ESCOMP/mizuRoute
-hash = 81c720c
 required = True
 
 [ccs_config]