diff --git a/Dockerfiles/alpine.Dockerfile b/Dockerfiles/alpine.Dockerfile
index c18ff899..b8312abf 100644
--- a/Dockerfiles/alpine.Dockerfile
+++ b/Dockerfiles/alpine.Dockerfile
@@ -20,7 +20,6 @@ RUN apk add --no-cache \
             musl-dev python3-dev py-pgen cython openblas-dev && \
     apk add --no-cache libstdc++ openblas libzmq && \
     ln -s locale.h /usr/include/xlocale.h && \
-    pip install cffi==1.12.3 --no-cache-dir --compile && \
     pip install . --no-cache-dir --compile && \
     find /usr/lib/python3.7/ -name 'tests' -exec rm -r '{}' + && \
     find /usr/lib/python3.7/site-packages/ -name '*.so' -print -exec sh -c 'file "{}" | grep -q "not stripped" && strip -s "{}"' \; && \
diff --git a/Dockerfiles/buster.Dockerfile b/Dockerfiles/buster.Dockerfile
index 38c92684..a8551bdd 100644
--- a/Dockerfiles/buster.Dockerfile
+++ b/Dockerfiles/buster.Dockerfile
@@ -20,7 +20,6 @@ ADD setup.py MANIFEST.in requirements.txt README.md ./
 ADD gnes ./gnes/
 
 RUN ln -s locale.h /usr/include/xlocale.h && \
-    pip install cffi==1.12.3 --no-cache-dir --compile && \
     pip install . --no-cache-dir --compile && \
     rm -rf /tmp/* && rm -rf /gnes && \
     rm /usr/include/xlocale.h
diff --git a/Dockerfiles/ubuntu18.Dockerfile b/Dockerfiles/ubuntu18.Dockerfile
index e556bd59..5f1d01c9 100644
--- a/Dockerfiles/ubuntu18.Dockerfile
+++ b/Dockerfiles/ubuntu18.Dockerfile
@@ -27,7 +27,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \
 ADD setup.py MANIFEST.in requirements.txt README.md ./
 ADD gnes ./gnes/
 
-RUN pip3 install cffi==1.12.3 --no-cache-dir --compile && pip3 install . --no-cache-dir --compile && \
+RUN pip3 install . --no-cache-dir --compile && \
     rm -rf /tmp/* && rm -rf /gnes
 
 WORKDIR /