diff --git a/.gitmodules b/.gitmodules
index 39d3ee49..1af1ba95 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,17 +10,22 @@
 [submodule "deps/googletest"]
 	path = deps/googletest
 	url = https://github.com/google/googletest.git
+	shallow = true
 [submodule "deps/zlib"]
 	path = deps/zlib
 	url = https://github.com/madler/zlib.git
 	branch = develop
 	ignore = dirty
+	shallow = true
 [submodule "deps/gtest-parallel"]
 	path = deps/gtest-parallel
 	url = https://github.com/google/gtest-parallel.git
+	shallow = true
 [submodule "deps/flatbuffers"]
 	path = deps/flatbuffers
 	url = https://github.com/google/flatbuffers.git
+	shallow = true
 [submodule "deps/base64"]
 	path = deps/base64
 	url = https://github.com/tobiaslocker/base64.git
+	shallow = true