diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index c8cd5e19..e8602142 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/requirements.txt
@@ -40,7 +40,7 @@ parso==0.3.1
 pexpect==4.6.0
 pickleshare==0.7.5
 prometheus-client==0.3.1
-prompt-toolkit==2.0.7
+prompt-toolkit==3.0.13
 protobuf==3.6.1
 # protobuf-to-dict==0.1.0
 ptyprocess==0.6.0