diff --git a/Externals.cfg b/Externals.cfg
index e4b27a714..40f3cf54c 100644
--- a/Externals.cfg
+++ b/Externals.cfg
@@ -1,5 +1,5 @@
 [ccs_config]
-tag = cosima
+tag = access-om3-v0.1.0
 protocol = git
 repo_url = https://github.com/COSIMA/ccs_config_cesm.git
 local_path = ccs_config
@@ -95,7 +95,7 @@ externals = Externals_CLM.cfg
 required = True
 
 [fms]
-tag = cosima
+tag = access-om3-v0.1.0
 protocol = git
 repo_url = https://github.com/COSIMA/FMS_interface
 local_path = libraries/FMS
@@ -103,7 +103,7 @@ externals = Externals_FMS.cfg
 required = False
 
 [mom]
-tag = cosima
+tag = access-om3-v0.1.0
 protocol = git
 repo_url = https://github.com/COSIMA/MOM_interface
 local_path = components/mom