diff --git a/lib/openzeppelin-contracts b/lib/openzeppelin-contracts
deleted file mode 160000
index fd81a96..0000000
--- a/lib/openzeppelin-contracts
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit fd81a96f01cc42ef1c9a5399364968d0e07e9e90