diff --git a/ci/docker/Dockerfile.build.android_armv7 b/ci/docker/Dockerfile.build.android_armv7
index a2e98cd2efe1..2c923a015b63 100644
--- a/ci/docker/Dockerfile.build.android_armv7
+++ b/ci/docker/Dockerfile.build.android_armv7
@@ -18,7 +18,7 @@
 #
 # Dockerfile to build MXNet for Android ARMv7
 
-FROM mxnetcipinned/dockcross-base:11262018
+FROM dockcross/base
 MAINTAINER Pedro Larroy "pllarroy@amazon.com"
 
 # The cross-compiling emulator
diff --git a/ci/docker/Dockerfile.build.android_armv8 b/ci/docker/Dockerfile.build.android_armv8
index f7de86763457..ca62288129bb 100644
--- a/ci/docker/Dockerfile.build.android_armv8
+++ b/ci/docker/Dockerfile.build.android_armv8
@@ -18,7 +18,7 @@
 #
 # Dockerfile to build MXNet for Android ARM64/ARMv8
 
-FROM mxnetcipinned/dockcross-base:11262018
+FROM dockcross/base
 MAINTAINER Pedro Larroy "pllarroy@amazon.com"
 
 RUN apt-get update && apt-get install -y \
@@ -82,4 +82,4 @@ RUN /work/ubuntu_adduser.sh
 
 COPY runtime_functions.sh /work/
 
-WORKDIR /work/build
\ No newline at end of file
+WORKDIR /work/build
diff --git a/ci/docker/Dockerfile.build.armv6 b/ci/docker/Dockerfile.build.armv6
index 60e223b7a60f..e6a7ffe758b9 100644
--- a/ci/docker/Dockerfile.build.armv6
+++ b/ci/docker/Dockerfile.build.armv6
@@ -18,7 +18,7 @@
 #
 # Dockerfile to build MXNet for ARMv6
 
-FROM mxnetcipinned/dockcross-linux-armv6:11262018
+FROM dockcross/linux-armv6
 
 ENV ARCH armv6l
 ENV HOSTCC gcc
diff --git a/ci/docker/Dockerfile.build.armv7 b/ci/docker/Dockerfile.build.armv7
index 0b557d5839e9..bad9ab214050 100644
--- a/ci/docker/Dockerfile.build.armv7
+++ b/ci/docker/Dockerfile.build.armv7
@@ -18,7 +18,7 @@
 #
 # Dockerfile to build MXNet for Android ARMv7
 
-FROM mxnetcipinned/dockcross-linux-armv7:11262018
+FROM dockcross/linux-armv7
 
 ENV ARCH armv7l
 ENV HOSTCC gcc
diff --git a/ci/docker/Dockerfile.build.armv8 b/ci/docker/Dockerfile.build.armv8
index ef9c95865590..bd2373180f0b 100644
--- a/ci/docker/Dockerfile.build.armv8
+++ b/ci/docker/Dockerfile.build.armv8
@@ -18,7 +18,7 @@
 #
 # Dockerfile to build MXNet for ARM64/ARMv8
 
-FROM mxnetcipinned/dockcross-linux-arm64:11262018
+FROM dockcross/linux-arm64
 
 ENV ARCH aarch64
 ENV HOSTCC gcc
diff --git a/ci/docker/Dockerfile.build.jetson b/ci/docker/Dockerfile.build.jetson
index 07097887f87d..e31ee43a93d8 100644
--- a/ci/docker/Dockerfile.build.jetson
+++ b/ci/docker/Dockerfile.build.jetson
@@ -22,7 +22,7 @@
 
 FROM nvidia/cuda:9.0-cudnn7-devel as cudabuilder
 
-FROM mxnetcipinned/dockcross-linux-arm64:11262018
+FROM dockcross/linux-arm64
 
 ENV ARCH aarch64
 ENV HOSTCC gcc
diff --git a/ci/docker/install/centos7_python.sh b/ci/docker/install/centos7_python.sh
index 8521cde1acca..686cf14e2e3b 100755
--- a/ci/docker/install/centos7_python.sh
+++ b/ci/docker/install/centos7_python.sh
@@ -31,5 +31,5 @@ curl "https://bootstrap.pypa.io/get-pip.py" -o "get-pip.py"
 python2.7 get-pip.py
 python3.6 get-pip.py
 
-pip2 install nose pylint numpy nose-timer requests h5py scipy==1.0.1
-pip3 install nose pylint numpy nose-timer requests h5py scipy==1.0.1
+pip2 install nose pylint numpy nose-timer requests h5py scipy==1.2.1 decorator==4.4.0
+pip3 install nose pylint numpy nose-timer requests h5py scipy==1.2.1 decorator==4.4.0
diff --git a/ci/docker/install/docs_requirements b/ci/docker/install/docs_requirements
index f78dca2bc655..c0b5efaba810 100644
--- a/ci/docker/install/docs_requirements
+++ b/ci/docker/install/docs_requirements
@@ -22,6 +22,7 @@ beautifulsoup4==4.6.3
 breathe==4.10.0
 cpplint==1.3.0
 CommonMark==0.5.4
+decorator==4.4.0
 h5py==2.8.0rc1
 mock==2.0.0
 nose==1.3.7
@@ -31,6 +32,6 @@ pylint==2.3.1; python_version >= '3.0'
 pypandoc==1.4
 recommonmark==0.4.0
 requests<2.19.0,>=2.18.4
-scipy==1.0.1
+scipy==1.2.1
 six==1.11.0
 sphinx==1.5.6
diff --git a/ci/docker/install/ubuntu_onnx.sh b/ci/docker/install/ubuntu_onnx.sh
index 0dad3f9ee431..4f83126366c8 100755
--- a/ci/docker/install/ubuntu_onnx.sh
+++ b/ci/docker/install/ubuntu_onnx.sh
@@ -31,5 +31,5 @@ apt-get update || true
 apt-get install -y libprotobuf-dev protobuf-compiler
 
 echo "Installing pytest, pytest-cov, protobuf, Pillow, ONNX and tabulate ..."
-pip2 install pytest==3.4.0 pytest-cov==2.5.1 protobuf==3.5.2 onnx==1.3.0 Pillow==5.0.0 tabulate==0.7.5
-pip3 install pytest==3.4.0 pytest-cov==2.5.1 protobuf==3.5.2 onnx==1.3.0 Pillow==5.0.0 tabulate==0.7.5
+pip2 install pytest==3.4.0 pytest-cov==2.5.1 protobuf==3.5.2 onnx==1.3.0 Pillow==5.0.0 tabulate==0.7.5 attrs==19.1.0
+pip3 install pytest==3.4.0 pytest-cov==2.5.1 protobuf==3.5.2 onnx==1.3.0 Pillow==5.0.0 tabulate==0.7.5 attrs==19.1.0
diff --git a/tools/caffe_converter/caffe_proto_utils.py b/tools/caffe_converter/caffe_proto_utils.py
index 8d6183457637..54cd952d4443 100644
--- a/tools/caffe_converter/caffe_proto_utils.py
+++ b/tools/caffe_converter/caffe_proto_utils.py
@@ -196,7 +196,7 @@ def read_caffe_mean(caffe_mean_file):
         mean_blob.ParseFromString(f.read())
 
     img_mean_np = np.array(mean_blob.data)
-    img_mean_np = img_mean_np.reshape(mean_blob.channels, mean_blob.height, mean_blob.width)
+    img_mean_np = img_mean_np.reshape(mean_blob.channels, mean_blob.height, mean_blob.width)  # pylint: disable=too-many-function-args
 
     # swap channels from Caffe BGR to RGB
     img_mean_np[[0, 2], :, :] = img_mean_np[[2, 0], :, :]
diff --git a/tools/caffe_converter/convert_mean.py b/tools/caffe_converter/convert_mean.py
index 1a3df71d3e54..1debfe5a2ef3 100644
--- a/tools/caffe_converter/convert_mean.py
+++ b/tools/caffe_converter/convert_mean.py
@@ -42,7 +42,7 @@ def convert_mean(binaryproto_fname, output=None):
         mean_blob.ParseFromString(f.read())
 
     img_mean_np = np.array(mean_blob.data)
-    img_mean_np = img_mean_np.reshape(
+    img_mean_np = img_mean_np.reshape(  # pylint: disable=too-many-function-args
         mean_blob.channels, mean_blob.height, mean_blob.width
     )
     # swap channels from Caffe BGR to RGB