diff --git a/Project.toml b/Project.toml
index d86e6b5..0698721 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,6 +16,7 @@ HTTP = "0.8"
 JSON = "0.21"
 Yao = "0.6"
 YaoBlocks = "0.11"
+YaoExtensions = "0.2"
 julia = "1"
 
 [extras]