diff --git a/.gitmodules b/.gitmodules
index b3f4317..e23005b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "libs/loguru"]
 	path = libs/loguru
 	url = https://github.com/emilk/loguru.git
+[submodule "libs/json"]
+	path = libs/json
+	url = https://github.com/nlohmann/json.git
diff --git a/libs/json b/libs/json
new file mode 160000
index 0000000..db78ac1
--- /dev/null
+++ b/libs/json
@@ -0,0 +1 @@
+Subproject commit db78ac1d7716f56fc9f1b030b715f872f93964e4