diff --git a/.gitmodules b/.gitmodules
index e69de29..f97c8e5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,14 @@
+[submodule "libs/protobuf/third_party/googletest"]
+	path = libs/protobuf/third_party/googletest
+	url = https://github.com/google/googletest.git
+	ignore = dirty
+[submodule "libs/protobuf/third_party/abseil-cpp"]
+	path = libs/protobuf/third_party/abseil-cpp
+	url = https://github.com/abseil/abseil-cpp.git
+	branch = lts_2022_06_23
+[submodule "libs/protobuf/third_party/jsoncpp"]
+	path = libs/protobuf/third_party/jsoncpp
+	url = https://github.com/open-source-parsers/jsoncpp.git
+[submodule "third_party/utf8_range"]
+	path = third_party/utf8_range
+	url = https://github.com/protocolbuffers/utf8_range.git
diff --git a/libs/protobuf/.gitmodules b/libs/protobuf/.gitmodules
new file mode 100644
index 0000000..db938cf
--- /dev/null
+++ b/libs/protobuf/.gitmodules
@@ -0,0 +1,14 @@
+[submodule "third_party/googletest"]
+	path = third_party/googletest
+	url = https://github.com/google/googletest.git
+	ignore = dirty
+[submodule "third_party/abseil-cpp"]
+	path = third_party/abseil-cpp
+	url = https://github.com/abseil/abseil-cpp.git
+	branch = lts_2022_06_23
+[submodule "third_party/jsoncpp"]
+	path = third_party/jsoncpp
+	url = https://github.com/open-source-parsers/jsoncpp.git
+[submodule "third_party/utf8_range"]
+	path = third_party/utf8_range
+	url = https://github.com/protocolbuffers/utf8_range.git