diff --git a/.travis.yml b/.travis.yml
index e31bd15..adb9911 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,7 +36,7 @@ matrix:
       language: shell       # 'language: python' is an error on Travis CI macOS
       before_install:
         - python3 --version
-        - pip3 install -U pip
+        # - pip3 install -U pip
         - pip3 install -U pytest
         - pip3 install codecov
       install:
@@ -49,7 +49,7 @@ matrix:
       language: shell       # 'language: python' is an error on Travis CI macOS
       before_install:
         - python3 --version
-        - pip3 install -U pip
+        # - pip3 install -U pip
         - pip3 install -U pytest
         - pip3 install codecov
       install:
@@ -63,7 +63,7 @@ matrix:
       before_install:
         - choco install python2
         - python --version
-        - python -m pip install --upgrade pip
+        # - python -m pip install --upgrade pip
         - pip install --upgrade pytest
         - pip install codecov
       env: PATH=/c/Python27:/c/Python27/Scripts:$PATH
@@ -73,7 +73,7 @@ matrix:
       before_install:
         - choco install python --version 3.5.4
         - python --version
-        - python -m pip install --upgrade pip
+        # - python -m pip install --upgrade pip
         - pip3 install --upgrade pytest
         - pip3 install codecov
       env: PATH=/c/Python35:/c/Python35/Scripts:$PATH
@@ -83,7 +83,7 @@ matrix:
       before_install:
         - choco install python --version 3.6.8
         - python --version
-        - python -m pip install --upgrade pip
+        # - python -m pip install --upgrade pip
         - pip3 install --upgrade pytest
         - pip3 install codecov
       env: PATH=/c/Python36:/c/Python36/Scripts:$PATH
@@ -93,13 +93,13 @@ matrix:
       before_install:
         - choco install python --version 3.7.4
         - python --version
-        - python -m pip install --upgrade pip
+        # - python -m pip install --upgrade pip
         - pip3 install --upgrade pytest
         - pip3 install codecov
       env: PATH=/c/Python37:/c/Python37/Scripts:$PATH
 before_install:
   - python --version
-  - pip install -U pip
+  # - pip install -U pip
   - pip install -U pytest
   - pip install codecov
   - pip install pymongo