diff --git a/.travis.yml b/.travis.yml
index e8941654..ca82befa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ matrix:
       language: generic
       env:
         - TOX_ENV=py27
-        - PYTHON_VERSION='2.7'
+        - PYTHON_VERSION='2.7.9'
     - os: osx
       language: generic
       env:
@@ -40,7 +40,8 @@ branches:
 before_install: |
     if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
       # From https://pythonhosted.org/CodeChat/.travis.yml.html
-      brew install pyenv-virtualenv
+      # Homebrew currently fails after updating. See also: https://discuss.circleci.com/t/brew-install-fails-while-updating/32992/4
+      HOMEBREW_NO_AUTO_UPDATE=1 brew install pyenv-virtualenv
       eval "$(pyenv init -)"
       eval "$(pyenv virtualenv-init -)"
       # See https://github.com/travis-ci/travis-ci/issues/4834, but
diff --git a/requirements.in b/requirements.in
index 3ac4583b..22932550 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,13 +1,15 @@
 click
 docker-py
-PyYAML
-requests
+#PyYAML
+#requests
 retrying
 six
 tqdm
 
 scrapinghub>=2.0.3
 
+pip<19.3
+
 # address known vulnerabilities
 requests>=2.20.0    # CVE-2018-18074
 pyyaml>=4.2b1       # CVE-2017-18342
diff --git a/requirements.txt b/requirements.txt
index a2bba22e..68744217 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,3 +20,6 @@ six==1.10.0
 tqdm==4.11.2
 urllib3==1.25.3           # via requests
 websocket-client==0.37.0  # via docker-py
+
+# The following packages are considered to be unsafe in a requirements file:
+# pip==19.2.3
diff --git a/setup.py b/setup.py
index 01abbe29..b11d9fff 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
     install_requires=[
         'click',
         'docker-py',
-        'pip',
+        'pip<19.3',
         'PyYAML',
         'retrying',
         'requests',
diff --git a/shub/utils.py b/shub/utils.py
index 6a988ed1..70d305e6 100644
--- a/shub/utils.py
+++ b/shub/utils.py
@@ -28,7 +28,11 @@
 try:
     from pip import main as pip_main
 except:
-    from pip._internal import main as pip_main
+    try:
+        # pip>=19.3
+        from pip._internal.main import main as pip_main
+    except ImportError:
+        from pip._internal import main as pip_main
 
 from scrapinghub import ScrapinghubClient, ScrapinghubAPIError, HubstorageClient