diff --git a/.gitmodules b/.gitmodules
index c7527e40..104b24af 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,4 @@
 [submodule "deps/openssl_src"]
 	path = deps/openssl_src
 	url = https://github.com/openssl/openssl.git
+	shallow = true