diff --git a/.gitmodules b/.gitmodules
index bf7b494f..e69de29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "docs/_themes"]
-	path = docs/_themes
-	url = git://github.com/mitsuhiko/flask-sphinx-themes.git
diff --git a/docs/_themes b/docs/_themes
deleted file mode 160000
index 0269f3d1..00000000
--- a/docs/_themes
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 0269f3d188eaff07c44a800f35f7351f9e0aefb0