diff --git a/Dockerfile b/Dockerfile
index 8f723f9..cb07ab1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ RUN apk add --no-cache \
     python3-dev
 
 RUN pip3 install wheel
-RUN pip3 wheel twisted==17.1.0
+RUN pip3 wheel twisted==18.9.0
 
 FROM thallian/confd-env:latest