diff --git a/.gitmodules b/.gitmodules
index b92048b7a2fbb..b696e224ced80 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -180,7 +180,7 @@
 [submodule "blocks/quickmail"]
 	path = blocks/quickmail
 	url = https://github.com/ucsf-education/moodle-block_quickmail
-	branch = UCSFCLE_37_STABLE
+	branch = UCSFCLE_403_STABLE
 [submodule "enrol/ilios"]
 	path = enrol/ilios
 	url = https://github.com/ilios/moodle-enrol-ilios
diff --git a/blocks/quickmail b/blocks/quickmail
index 8e7f53709c40b..4f10837da23ca 160000
--- a/blocks/quickmail
+++ b/blocks/quickmail
@@ -1 +1 @@
-Subproject commit 8e7f53709c40bf32e08c88f39cb9b61b775c52b8
+Subproject commit 4f10837da23ca2c46da0987a0950cd7e7e143cb6