diff --git a/Dockerfile b/Dockerfile
index 0f37abd..557c801 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.6
+FROM python:3.8
 ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive TERM=linux
@@ -6,11 +6,11 @@ ENV DEBIAN_FRONTEND=noninteractive TERM=linux
 EXPOSE 8801
 
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends git ca-certificates
+    apt-get install -y --no-install-recommends git ca-certificates build-essential python-dev
 
 RUN pip3 install pipenv
 
-RUN git clone -b 2.x https://github.com/airnotifier/airnotifier.git /airnotifier
+RUN git clone https://github.com/airnotifier/airnotifier.git /airnotifier
 RUN mkdir -p /var/airnotifier/pemdir && \
     mkdir -p /var/log/airnotifier