diff --git a/.gitmodules b/.gitmodules
index 8d3a7ca..a30c21f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "deps/GSL"]
 	path = deps/GSL
 	url = https://github.com/microsoft/GSL.git
+[submodule "deps/json"]
+	path = deps/json
+	url = https://github.com/nlohmann/json
diff --git a/deps/json b/deps/json
new file mode 160000
index 0000000..e4643d1
--- /dev/null
+++ b/deps/json
@@ -0,0 +1 @@
+Subproject commit e4643d1f1b03fc7a1d7b65f17e012ca93680cad8