diff --git a/Dockerfile b/Dockerfile
index cf08a6e..b5f43e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,12 +12,14 @@ ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get -y update && \
     apt-get -y upgrade && \
-    apt-get install -y python3-pip python3-dev
+    apt-get install -y python3.8 python3-pip
+
 
 RUN apt-get install -y locales git vim nano
 
 RUN apt-get install -y zsh && apt-get install -y curl
-RUN PATH="$PATH:/usr/bin/zsh"
+ENV PATH="$PATH:/usr/bin/zsh"
+ENV PATH=/usr/bin:$PATH
 RUN sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"