diff --git a/.travis.yml b/.travis.yml
index ddf5d45d..c3b8d548 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,11 +4,11 @@ env:
         # Commit from opencv that you want to build
         - BUILD_COMMIT=70bbf17b133496bd7d54d034b0f94bd869e0e810
         # pip dependencies to _build_ your project
-        - BUILD_DEPENDS="numpy>=1.11.1"
+        - BUILD_DEPENDS="numpy==1.11.1"
         # pip dependencies to _test_ your project.  Include any dependencies
         # that you need, that are also specified in BUILD_DEPENDS, this will be
         # a separate install.
-        - TEST_DEPENDS="numpy>=1.11.1"
+        - TEST_DEPENDS="numpy==1.11.1"
         - PLAT=x86_64
         - UNICODE_WIDTH=32
         - secure: "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"
@@ -89,11 +89,15 @@ matrix:
       env:
         - MB_PYTHON_VERSION=3.6
         - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
+        - BUILD_DEPENDS=numpy==1.11.3
+        - TEST_DEPENDS=numpy==1.11.3
     - os: linux
       env:
         - MB_PYTHON_VERSION=3.6
         - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
         - PLAT=i686
+        - BUILD_DEPENDS=numpy==1.11.3
+        - TEST_DEPENDS=numpy==1.11.3
 
 before_install:
     - source multibuild/common_utils.sh
@@ -112,4 +116,4 @@ script:
 after_success:
     # Upload wheels to pypi
     - pip install twine
-    - if [ -n "$TRAVIS_TAG" ]; then twine upload -u ${USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/wheelhouse/opencv*; else echo "Tag not set, deployment skipped."; fi
\ No newline at end of file
+    - if [ -n "$TRAVIS_TAG" ]; then twine upload -u ${USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/wheelhouse/opencv*; else echo "Tag not set, deployment skipped."; fi
diff --git a/appveyor.yml b/appveyor.yml
index 0c2d3cca..923d96a7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,34 +10,42 @@ environment:
       BUILD_ENV: "Visual Studio 14"
       BUILD_DIR: "build"
       PYTHON_VERSION: "2.7"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python27-x64"
       BUILD_ENV: "Visual Studio 14 Win64"
       BUILD_DIR: "build64"
       PYTHON_VERSION: "2.7"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python34"
       BUILD_ENV: "Visual Studio 14"
       BUILD_DIR: "build"
       PYTHON_VERSION: "3.4"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python34-x64"
       BUILD_ENV: "Visual Studio 14 Win64"
       BUILD_DIR: "build64"
       PYTHON_VERSION: "3.4"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python35"
       BUILD_ENV: "Visual Studio 14"
       BUILD_DIR: "build"
       PYTHON_VERSION: "3.5"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python35-x64"
       BUILD_ENV: "Visual Studio 14 Win64"
       BUILD_DIR: "build64"
       PYTHON_VERSION: "3.5"
+      NP_VERSION: "1.11.1"
     - PYTHON: "C:/Python36"
       BUILD_ENV: "Visual Studio 14"
       BUILD_DIR: "build"
       PYTHON_VERSION: "3.6"
+      NP_VERSION: "1.11.3"
     - PYTHON: "C:/Python36-x64"
       BUILD_ENV: "Visual Studio 14 Win64"
       BUILD_DIR: "build64"
       PYTHON_VERSION: "3.6"
+      NP_VERSION: "1.11.3"
 
 install:
 - cmd: >-
@@ -50,6 +58,8 @@ install:
 
     "%PYTHON%/python.exe" -m pip install -r requirements.txt
 
+    "%PYTHON%/python.exe" -m pip install "numpy==%NP_VERSION%"
+
 build_script:
 - cmd: |-
 
diff --git a/config.sh b/config.sh
index 392ea16d..c86ad91d 100644
--- a/config.sh
+++ b/config.sh
@@ -41,7 +41,8 @@ function run_tests {
       source ../travis/test-wheels.sh
     else
       echo "Running for linux"
-      apt-get -y install libglib2.0-0
+      apt-get update
+      apt-get -y install --fix-missing libglib2.0-0
       cd /io/tests/
       source /io/travis/test-wheels.sh
     fi
diff --git a/requirements.txt b/requirements.txt
index 0ec9ed36..6c4932c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,2 @@
-numpy>=1.11.1
 wheel
 twine
diff --git a/travis/build-wheels-osx.sh b/travis/build-wheels-osx.sh
index cf5b0437..c2e548f9 100644
--- a/travis/build-wheels-osx.sh
+++ b/travis/build-wheels-osx.sh
@@ -8,7 +8,7 @@ echo 'PYTHON_VERSION: '$PYTHON_VERSION
 
 echo 'PIP and brew installs'
 
-pip install -r requirements.txt
+pip install $BUILD_DEPENDS
 
 echo 'Config make'
 
diff --git a/travis/build-wheels.sh b/travis/build-wheels.sh
index 1bec8de2..67b6803f 100755
--- a/travis/build-wheels.sh
+++ b/travis/build-wheels.sh
@@ -11,7 +11,7 @@ for PYBIN in /opt/python/cp$PYTHON_VERSION*/bin; do
     echo 'PWD  : '$PWD
     echo 'PYBIN: '$PYBIN
 
-    $PYBIN/pip install -r requirements.txt
+    $PYBIN/pip install $BUILD_DEPENDS
 
     # Begin build
     echo 'Begin build'