diff --git a/docker/Dockerfile.ci_gpu b/docker/Dockerfile.ci_gpu
index 96324c4a68fc..f6838975332b 100644
--- a/docker/Dockerfile.ci_gpu
+++ b/docker/Dockerfile.ci_gpu
@@ -25,11 +25,11 @@ RUN apt-get update --fix-missing
 COPY install/ubuntu_install_core.sh /install/ubuntu_install_core.sh
 RUN bash /install/ubuntu_install_core.sh
 
-COPY install/ubuntu_install_python.sh /install/ubuntu_install_python.sh
-RUN bash /install/ubuntu_install_python.sh
+COPY install/ubuntu1804_install_python.sh /install/ubuntu1804_install_python.sh
+RUN bash /install/ubuntu1804_install_python.sh
 
-COPY install/ubuntu_install_llvm.sh /install/ubuntu_install_llvm.sh
-RUN bash /install/ubuntu_install_llvm.sh
+COPY install/ubuntu1804_install_llvm.sh /install/ubuntu1804_install_llvm.sh
+RUN bash /install/ubuntu1804_install_llvm.sh
 
 COPY install/ubuntu_install_opencl.sh /install/ubuntu_install_opencl.sh
 RUN bash /install/ubuntu_install_opencl.sh
diff --git a/docker/Dockerfile.ci_i386 b/docker/Dockerfile.ci_i386
index 2cdf10c4369e..2383f4675e37 100644
--- a/docker/Dockerfile.ci_i386
+++ b/docker/Dockerfile.ci_i386
@@ -20,8 +20,7 @@
 
 FROM ioft/i386-ubuntu:16.04
 
-RUN apt-get update --fix-missing
-RUN apt-get install -y ca-certificates
+RUN apt-get update --fix-missing && apt-get install -y ca-certificates
 
 COPY install/ubuntu_install_core.sh /install/ubuntu_install_core.sh
 RUN bash /install/ubuntu_install_core.sh