diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..bef5376aa
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/pngquant"]
+	path = third_party/pngquant
+	url = git@github.com:kornelski/pngquant.git
diff --git a/third_party/pngquant b/third_party/pngquant
new file mode 160000
index 000000000..44a33a6cb
--- /dev/null
+++ b/third_party/pngquant
@@ -0,0 +1 @@
+Subproject commit 44a33a6cb500eb8b944aa88bf449c9c055f85dd2