diff --git a/conf/app.src b/conf/app.src
index b1b5572..17a898d 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,6 +1,6 @@
-SOURCE_URL=https://releases.mattermost.com/4.7.2/mattermost-4.7.2-linux-amd64.tar.gz
-SOURCE_SUM=947577631a94a003d660b4eb08f07585e0e1f93c3e5b63a8c30a72e0abcde9c1
+SOURCE_URL=https://releases.mattermost.com/4.7.3/mattermost-4.7.3-linux-amd64.tar.gz
+SOURCE_SUM=09a728ad189d2cf315d664fed7caf68fbf9af60f85e2619d308b5345e576293c
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=mattermost-4.7.2-linux-amd64.tar.gz
+SOURCE_FILENAME=mattermost-4.7.3-linux-amd64.tar.gz