diff --git a/util/dockerfiles/ubuntu-18.04_all-dependencies/Dockerfile b/util/dockerfiles/ubuntu-18.04_all-dependencies/Dockerfile
index 1259f2e531..2403a5002b 100644
--- a/util/dockerfiles/ubuntu-18.04_all-dependencies/Dockerfile
+++ b/util/dockerfiles/ubuntu-18.04_all-dependencies/Dockerfile
@@ -30,5 +30,5 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install build-essential git m4 scons zlib1g zlib1g-dev \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python-dev python python-six doxygen libboost-all-dev libhdf5-serial-dev \
-    python-pydot libpng-dev libelf-dev pkg-config
+    python3-dev python3 python3-six doxygen libboost-all-dev \
+    libhdf5-serial-dev python3-pydot libpng-dev libelf-dev pkg-config
diff --git a/util/dockerfiles/ubuntu-18.04_clang-version/Dockerfile b/util/dockerfiles/ubuntu-18.04_clang-version/Dockerfile
index 428bd02913..97f3dbc3e1 100644
--- a/util/dockerfiles/ubuntu-18.04_clang-version/Dockerfile
+++ b/util/dockerfiles/ubuntu-18.04_clang-version/Dockerfile
@@ -40,7 +40,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev clang-${version} \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python-dev python python-six doxygen
+    python3-dev python3 python3-six doxygen
 
 RUN apt-get --purge -y remove gcc
 
diff --git a/util/dockerfiles/ubuntu-18.04_gcc-version/Dockerfile b/util/dockerfiles/ubuntu-18.04_gcc-version/Dockerfile
index 902e4a014b..9f3da370c6 100644
--- a/util/dockerfiles/ubuntu-18.04_gcc-version/Dockerfile
+++ b/util/dockerfiles/ubuntu-18.04_gcc-version/Dockerfile
@@ -37,7 +37,8 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev gcc-multilib \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python-dev python python-six doxygen wget zip gcc-${version} g++-${version}
+    python3-dev python3 python3-six doxygen wget zip gcc-${version} \
+    g++-${version}
 
 RUN update-alternatives --install \
     /usr/bin/g++ g++ /usr/bin/g++-${version} 100
diff --git a/util/dockerfiles/ubuntu-18.04_min-dependencies/Dockerfile b/util/dockerfiles/ubuntu-18.04_min-dependencies/Dockerfile
index 986b2b62bf..5ec6784e3a 100644
--- a/util/dockerfiles/ubuntu-18.04_min-dependencies/Dockerfile
+++ b/util/dockerfiles/ubuntu-18.04_min-dependencies/Dockerfile
@@ -28,5 +28,5 @@ FROM ubuntu:18.04
 
 RUN apt -y update
 RUN apt -y upgrade
-RUN apt -y install build-essential scons zlib1g-dev m4 python-dev python \
-    python-six
+RUN apt -y install build-essential scons zlib1g-dev m4 python3-dev python3 \
+    python3-six