diff --git a/.gitmodules b/.gitmodules
index b856b42..1503b5e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,12 @@
 [submodule "CTFd-multi-answer"]
 	path = CTFd-multi-answer
 	url = https://github.com/wroersma/CTFd-multi-answer
+[submodule "CTFd-S3-plugin"]
+	path = CTFd-S3-plugin
+	url = git@github.com:CTFd/CTFd-S3-plugin.git
+[submodule "CTFd-Notify"]
+	path = CTFd-Notify
+	url = git@github.com:CTFd/CTFd-Notify.git
+[submodule "CTFd-Docker"]
+	path = CTFd-Docker
+	url = https://github.com/CTFd/CTFd-Docker
\ No newline at end of file