diff --git a/.gitmodules b/.gitmodules
index 0c2a833..0e539dc 100755
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,9 +1,3 @@
-[submodule "vendor/diff-match-patch-cpp-stl"]
-    path = vendor/diff-match-patch-cpp-stl
-    url = https://github.com/leutloff/diff-match-patch-cpp-stl
 [submodule "vendor/secp256k1-zkp"]
     path = vendor/secp256k1-zkp
     url = https://github.com/bitshares/secp256k1-zkp.git
-[submodule "vendor/websocketpp"]
-    path = vendor/websocketpp
-    url = https://github.com/zaphoyd/websocketpp.git
diff --git a/vendor/websocketpp b/vendor/websocketpp
deleted file mode 160000
index 378437a..0000000
--- a/vendor/websocketpp
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 378437aecdcb1dfe62096ffd5d944bf1f640ccc3