diff --git a/Dockerfile b/Dockerfile
index a33e5c0..5e272cc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,6 +34,8 @@ RUN export SABNZBD_VERSION=3.7.2 PAR2CMDLINE_VERSION=v0.6.14-mt1 && \
     tar xzf /tmp/sabnzbd.tar.gz && \
     mv SABnzbd-* sabnzbd && \
     sed -i '/pywin32/d' /sabnzbd/requirements.txt && \
+    sed -i 's/^cffi==.*/cffi/' /sabnzbd/requirements.txt && \
+    sed -i 's/^cryptography==.*/cryptography/' /sabnzbd/requirements.txt && \
     pip3 install -r /sabnzbd/requirements.txt && \
     chown -R sabnzbd: sabnzbd && \
     curl -o /tmp/par2cmdline-mt.tar.gz https://codeload.github.com/jkansanen/par2cmdline-mt/tar.gz/${PAR2CMDLINE_VERSION} && \