diff --git a/Dockerfile b/Dockerfile
index 83210b9..7d0ab48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,8 @@ RUN apk add --update --no-cache --virtual .deps build-base \
                                                 python-dev \
   && apk add --no-cache openssl-dev \
                         python \
-  && pip install paramiko \
+  && pip install --upgrade pip \
+  && pip install paramiko==2.4.1 \
   && apk del .deps
 
 COPY sshUsernameEnumExploit.py /sshUsernameEnumExploit.py