diff --git a/Externals_CLM.cfg b/Externals_CLM.cfg
index 9e1fae0333..23deb68027 100644
--- a/Externals_CLM.cfg
+++ b/Externals_CLM.cfg
@@ -2,7 +2,7 @@
 local_path = src/fates
 protocol = git
 repo_url = https://github.com/NGEET/fates
-tag = sci.1.30.0_api.8.0.0
+tag = sci.1.31.1_api.8.1.0
 required = True
 
 [PTCLM]