diff --git a/requirements.txt b/requirements.txt
index 181aa1e..fad2596 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ certifi==2020.4.5.2
 chardet==3.0.4
 future==0.18.2
 idna==2.9
-pyngrok==3.1.1
+pyngrok==4.0.1
 PyYAML==5.3.1
 requests==2.23.0
 urllib3==1.25.9