diff --git a/.travis.yml b/.travis.yml
index 21bcd51e..38376a59 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ install:
 - sudo add-apt-repository ppa:deadsnakes/ppa -y
 - sudo apt-get -qq update
 - sudo apt-get -qq install build-essential python3.7 python3.7-dev python3.7-venv python3-pip ccache git libncurses5:i386 libstdc++6:i386 libgtk2.0-0:i386 libpangox-1.0-0:i386 libpangoxft-1.0-0:i386 libidn11:i386 python2.7 python2.7-dev openjdk-8-jdk unzip zlib1g-dev zlib1g:i386 m4 libc6-dev-i386
-- sudo pip install --upgrade cython==0.25.2 pip setuptools
+- sudo pip install --upgrade cython==0.26 pip setuptools
 - wget -q https://nodejs.org/dist/v8.11.1/node-v8.11.1-linux-x64.tar.xz
 - tar -xf node-v8.11.1-linux-x64.tar.xz
 - sudo ln -s $TRAVIS_BUILD_DIR/node-v8.11.1-linux-x64/bin/node /usr/bin/node