diff --git a/Cargo.toml b/Cargo.toml
index 8d90ede..31aeb30 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,4 +20,4 @@ compact = []
 thread_local = "1.0.0"
 
 [dev-dependencies]
-termion = "1.5.1"
+termion = "4"