diff --git a/.gitmodules b/.gitmodules
index 0f1965e8..248b5c62 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "lib/prb-test"]
 	path = lib/prb-test
 	url = https://github.com/paulrberg/prb-test.git
+[submodule "lib/murky"]
+	path = lib/murky
+	url = https://github.com/dmfxyz/murky
diff --git a/lib/murky b/lib/murky
new file mode 160000
index 00000000..1d9566b9
--- /dev/null
+++ b/lib/murky
@@ -0,0 +1 @@
+Subproject commit 1d9566b908b9702c45d354a1caabe8ef5a69938d