diff --git a/.travis.yml b/.travis.yml
index 94c4bdf..c223c4a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ matrix:
   - php: '7.4'
     env: SWOOLE_VERSION="master"
   - php: 'nightly'
-    env: SWOOLE_VERSION="master" DISABLE_XDEBUG=false
+    env: SWOOLE_VERSION="master" DISABLE_XDEBUG=false INSTALL_REDIS_EXT=true
   - php: '7.1'
     env: SWOOLE_VERSION="v4.4.17"
   - php: '7.2'
@@ -41,6 +41,16 @@ services:
   - redis-server
 
 install:
+  - if [[ $INSTALL_REDIS_EXT == true ]]; then
+      wget https://github.com/phpredis/phpredis/archive/develop.zip;
+      unzip develop.zip;
+      cd phpredis-develop;
+      phpize;
+      ./configure;
+      make && make install;
+      cd ../;
+    fi
+  - echo "extension = redis.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - wget https://github.com/swoole/swoole-src/archive/$SWOOLE_VERSION.tar.gz -O swoole.tar.gz && mkdir -p swoole && tar -xf swoole.tar.gz -C swoole --strip-components=1 && rm swoole.tar.gz && cd swoole && phpize && ./configure --enable-openssl --enable-http2 && make -j && make install && cd -
   - echo "extension = swoole.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini