diff --git a/.gitmodules b/.gitmodules
index b92048b7a2fbb..5f1a70933aeb9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,10 +2,6 @@
 	path = admin/tool/externaltaskmonitor
 	url = https://github.com/ucsf-education/tool_externaltaskmonitor
 	branch = MOODLE_403_DEVEL
-[submodule "admin/tool/ilioscategoryassignment"]
-	path = admin/tool/ilioscategoryassignment
-	url = https://github.com/ilios/tool_ilioscategoryassignment
-	branch = MOODLE_403_DEVEL
 [submodule "availability/condition/mobileapp"]
 	path = availability/condition/mobileapp
 	url = https://github.com/ucsf-education/moodle-availability_mobileapp
@@ -160,7 +156,7 @@
 [submodule "admin/tool/ilioscategoryassignment"]
 	path = admin/tool/ilioscategoryassignment
 	url = https://github.com/ilios/tool_ilioscategoryassignment
-	branch = MOODLE_403_DEVEL
+	branch = MOODLE_403_STABLE
 [submodule "admin/tool/ldapsync"]
 	path = admin/tool/ldapsync
 	url = https://github.com/ucsf-education/moodle-admin-tool-ldapsync
diff --git a/admin/tool/ilioscategoryassignment b/admin/tool/ilioscategoryassignment
index 0ce4dcc5cc144..8a172b086b584 160000
--- a/admin/tool/ilioscategoryassignment
+++ b/admin/tool/ilioscategoryassignment
@@ -1 +1 @@
-Subproject commit 0ce4dcc5cc1443eecbe02095e6bd9bf312c0e5f9
+Subproject commit 8a172b086b584c71ee3c75948e57b9102a159086