diff --git a/.gitmodules b/.gitmodules
index f20df4e9..178cdfa1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,9 +4,6 @@
 [submodule "third_party/doctest"]
 	path = third_party/doctest
 	url = https://github.com/onqtam/doctest
-[submodule "third_party/sparsehash"]
-	path = third_party/sparsehash
-	url = https://github.com/sparsehash/sparsehash
 [submodule "third_party/sparsepp"]
 	path = third_party/sparsepp
 	url = https://github.com/greg7mdp/sparsepp
diff --git a/third_party/sparsehash b/third_party/sparsehash
deleted file mode 160000
index 4cb92402..00000000
--- a/third_party/sparsehash
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 4cb924025b8c622d1a1e11f4c1e9db15410c75fb