diff --git a/docker/cilantro-convert-worker/Dockerfile b/docker/cilantro-convert-worker/Dockerfile
index 9258ecaf8..8c9016725 100644
--- a/docker/cilantro-convert-worker/Dockerfile
+++ b/docker/cilantro-convert-worker/Dockerfile
@@ -23,7 +23,7 @@ ENV LANG C.UTF-8
 # workaround for pipenv bug: https://github.com/pypa/pipenv/issues/1328
 RUN set -ex && mkdir /app
 
-RUN pip3 install pipenv
+RUN pip3 install 'pipenv==2018.11.26'
 COPY docker/cilantro-convert-worker/Pipfile.lock Pipfile.lock
 COPY docker/cilantro-convert-worker/Pipfile Pipfile
 RUN set -ex && pipenv install --deploy --system
diff --git a/docker/cilantro-default-worker/Dockerfile b/docker/cilantro-default-worker/Dockerfile
index b9d36234b..65722bf4e 100644
--- a/docker/cilantro-default-worker/Dockerfile
+++ b/docker/cilantro-default-worker/Dockerfile
@@ -20,7 +20,7 @@ ENV LANG C.UTF-8
 RUN set -ex && mkdir /app
 
 
-RUN pip3 install pipenv
+RUN pip3 install 'pipenv==2018.11.26'
 COPY docker/cilantro-default-worker/Pipfile.lock Pipfile.lock
 COPY docker/cilantro-default-worker/Pipfile Pipfile
 RUN set -ex && pipenv install --deploy --system
diff --git a/docker/cilantro-nlp-heideltime-worker/Dockerfile b/docker/cilantro-nlp-heideltime-worker/Dockerfile
index 83e376683..131aeb9e4 100644
--- a/docker/cilantro-nlp-heideltime-worker/Dockerfile
+++ b/docker/cilantro-nlp-heideltime-worker/Dockerfile
@@ -17,7 +17,7 @@ ENV LANG C.UTF-8
 # workaround for pipenv bug: https://github.com/pypa/pipenv/issues/1328
 RUN set -ex && mkdir /app
 
-RUN pip3 install pipenv
+RUN pip3 install 'pipenv==2018.11.26'
 COPY docker/cilantro-nlp-heideltime-worker/Pipfile.lock Pipfile.lock
 COPY docker/cilantro-nlp-heideltime-worker/Pipfile Pipfile
 RUN set -ex && pipenv install --deploy --system
diff --git a/docker/cilantro-service/Dockerfile b/docker/cilantro-service/Dockerfile
index c5b7a31c2..e26376dd8 100644
--- a/docker/cilantro-service/Dockerfile
+++ b/docker/cilantro-service/Dockerfile
@@ -10,7 +10,7 @@ RUN apk add --update python3-dev py-pip gcc libffi libffi-dev musl-dev
 # workaround for pipenv bug: https://github.com/pypa/pipenv/issues/1328
 RUN set -ex && mkdir /app
 
-RUN pip3 install pipenv
+RUN pip3 install 'pipenv==2018.11.26'
 COPY docker/cilantro-service/Pipfile.lock Pipfile.lock
 COPY docker/cilantro-service/Pipfile Pipfile
 RUN set -ex && pipenv install --deploy --system
diff --git a/docker/cilantro-test/Dockerfile b/docker/cilantro-test/Dockerfile
index 451640ed0..8632fac1f 100644
--- a/docker/cilantro-test/Dockerfile
+++ b/docker/cilantro-test/Dockerfile
@@ -22,7 +22,7 @@ ENV LC_ALL C.UTF-8
 ENV LANG C.UTF-8
 
 
-RUN pip3 install pipenv
+RUN pip3 install 'pipenv==2018.11.26'
 COPY docker/cilantro-test/Pipfile.lock Pipfile.lock
 COPY docker/cilantro-test/Pipfile Pipfile
 RUN set -ex && pipenv install --deploy --system