diff --git a/.travis.yml b/.travis.yml
index 0d6d3dd..44fdb3f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,46 +24,23 @@ jobs:
       - MB_PYTHON_VERSION=2.7
       - PLAT=x86_64
 
-  - os: linux
-    env:
-      - MB_PYTHON_VERSION=2.7
-      - PLAT=i686
-
   - os: linux
     env:
       - MB_PYTHON_VERSION=2.7
       - PLAT=x86_64
       - UNICODE_WIDTH=16
 
-  - os: linux
-    env:
-      - MB_PYTHON_VERSION=2.7
-      - PLAT=i686
-      - UNICODE_WIDTH=16
-
   - os: linux
     env:
       - MB_PYTHON_VERSION=3.5
       - PLAT=x86_64
       - SKIP_NETWORK_TESTS=1
 
-  - os: linux
-    env:
-      - MB_PYTHON_VERSION=3.5
-      - PLAT=i686
-      - SKIP_NETWORK_TESTS=1
-
   - os: linux
     env:
       - MB_PYTHON_VERSION=3.6
       - PLAT=x86_64
 
-  - os: linux
-    env:
-      - MB_PYTHON_VERSION=3.6
-      - PLAT=i686
-      - SKIP_NETWORK_TESTS=1
-
   - os: linux
     env:
       - BUILD_DEPENDS="numpy==1.14.5 scipy==1.1.0 ${GLOBAL_DEPENDS}"
@@ -72,13 +49,6 @@ jobs:
       - PLAT=x86_64
       - SKIP_NETWORK_TESTS=1
 
-  - os: linux
-    env:
-      - BUILD_DEPENDS="numpy==1.14.5 scipy==1.1.0 ${GLOBAL_DEPENDS}"
-      - TEST_DEPENDS="numpy==1.14.5 scipy==1.1.0 ${GLOBAL_DEPENDS} ${TEST_COMMON} scikit-learn"
-      - MB_PYTHON_VERSION=3.7
-      - PLAT=i686
-      - SKIP_NETWORK_TESTS=1
 
   - os: linux
     env:
@@ -88,13 +58,6 @@ jobs:
       - PLAT=x86_64
       - SKIP_NETWORK_TESTS=1
 
-  - os: linux
-    env:
-      - BUILD_DEPENDS="numpy==1.17.3 scipy==1.3.2 ${GLOBAL_DEPENDS}"
-      - TEST_DEPENDS="numpy==1.17.3 scipy==1.3.2 ${GLOBAL_DEPENDS} ${TEST_COMMON} scikit-learn"
-      - MB_PYTHON_VERSION=3.8
-      - PLAT=i686
-      - SKIP_NETWORK_TESTS=1
 
   # MacOS
   - os: osx
diff --git a/appveyor.yml b/appveyor.yml
index f0c3e1d..ee3d61b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,42 +11,22 @@ environment:
       secure: CKjewPPfH6vXYbZYZnF+w05yoA4HUwOcxmxnahDzT3xlB1F5kx9ng0u8mDUR++Wh
 
   matrix:
-    - PYTHON: "C:\\Python27"
-      PYTHON_VERSION: "2.7.12"
-      PYTHON_ARCH: "32"
-
     - PYTHON: "C:\\Python27-x64"
       PYTHON_VERSION: "2.7.12"
       PYTHON_ARCH: "64"
 
-    - PYTHON: "C:\\Python35"
-      PYTHON_VERSION: "3.5.2"
-      PYTHON_ARCH: "32"
-
     - PYTHON: "C:\\Python35-x64"
       PYTHON_VERSION: "3.5.2"
       PYTHON_ARCH: "64"
 
-    - PYTHON: "C:\\Python36"
-      PYTHON_VERSION: "3.6.0"
-      PYTHON_ARCH: "32"
-
     - PYTHON: "C:\\Python36-x64"
       PYTHON_VERSION: "3.6.0"
       PYTHON_ARCH: "64"
 
-    - PYTHON: "C:\\Python37"
-      PYTHON_VERSION: "3.7.0"
-      PYTHON_ARCH: "32"
-
     - PYTHON: "C:\\Python37-x64"
       PYTHON_VERSION: "3.7.0"
       PYTHON_ARCH: "64"
 
-    - PYTHON: "C:\\Python38"
-      PYTHON_VERSION: "3.8.0"
-      PYTHON_ARCH: "32"
-
     - PYTHON: "C:\\Python38-x64"
       PYTHON_VERSION: "3.8.0"
       PYTHON_ARCH: "64"