diff --git a/docker/debian9.8-cpu/Dockerfile b/docker/debian9.8-cpu/Dockerfile
index fb2ef6e8db6..db0b9c47a73 100644
--- a/docker/debian9.8-cpu/Dockerfile
+++ b/docker/debian9.8-cpu/Dockerfile
@@ -19,6 +19,7 @@ RUN apt-get update && \
         python3 \
         zlib1g-dev \
         ca-certificates \
+        gfortran \
         patch \
         ffmpeg \
 	vim && \
diff --git a/docker/ubuntu16.04-gpu/Dockerfile b/docker/ubuntu16.04-gpu/Dockerfile
index 49189b2970f..d705a5c1689 100644
--- a/docker/ubuntu16.04-gpu/Dockerfile
+++ b/docker/ubuntu16.04-gpu/Dockerfile
@@ -18,6 +18,7 @@ RUN apt-get update && \
         python2.7 \
         python3 \
         zlib1g-dev \
+        gfortran \
         ca-certificates \
         patch \
         ffmpeg \