diff --git a/.gitmodules b/.gitmodules
index 305d3c828a..d8c01f79d2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -151,7 +151,7 @@ fxDONOTUSEurl = https://github.com/ESMCI/ccs_config_cesm.git
 [submodule "cime"]
 path = cime
 url = https://github.com/ESMCI/cime
-fxtag = cime6.1.55
+fxtag = cime6.1.56
 fxrequired = ToplevelRequired
 fxDONOTUSEurl = https://github.com/ESMCI/cime
 
diff --git a/cime b/cime
index 85922c028f..ac8e583108 160000
--- a/cime
+++ b/cime
@@ -1 +1 @@
-Subproject commit 85922c028ff8a5b9f5573888f4240cdc4b8104a3
+Subproject commit ac8e583108b1ce1f592a6f6436c71d6dc087f447