diff --git a/.gitmodules b/.gitmodules
index f97dca7..ece59f1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
-[submodule "lectures"]
-	path = lectures
-	url = https://github.com/Otago-InfoSci-Database/lectures.git
 [submodule "ouexam"]
 	path = ouexam
 	url = https://github.com/nstanger/ouexam.git