diff --git a/.gitmodules b/.gitmodules
index ac687fa..0a45405 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "deps/glfw"]
 	path = deps/glfw
 	url = https://github.com/glfw/glfw.git
+[submodule "deps/libz"]
+	path = deps/libz
+	url = https://gitlab.com/sortix/libz.git
diff --git a/deps/libz b/deps/libz
new file mode 160000
index 0000000..852e2b0
--- /dev/null
+++ b/deps/libz
@@ -0,0 +1 @@
+Subproject commit 852e2b05851bfa471eb627ae16bf7b1d5e0a5a78