diff --git a/.gitmodules b/.gitmodules
index f0c1695e6..8b40dfe8a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,8 @@
 [submodule "test"]
 	path = test
 	url = https://github.com/koreader/test-data.git
+	shallow = true
 [submodule "resources/fonts"]
 	path = resources/fonts
 	url = https://github.com/koreader/koreader-fonts.git
+	shallow = true