diff --git a/.travis.yml b/.travis.yml
index 8f4e1727eb8..7bb93d8fcbb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,10 @@ matrix:
     - php: 7.2
       name: Backward compatibillity check
       env: DEPENDENCIES="roave/backward-compatibility-check" TEST_COMMAND="./.github/bc-test.sh"
+    - php: 7.1
+      name: phpstan
+      script:
+        - vendor/bin/phpstan analyse --no-progress
 
 before_install:
     - if ! [ -z "$DEPENDENCIES" ]; then composer require --no-update ${DEPENDENCIES}; fi;
diff --git a/composer.json b/composer.json
index 2f46ebc4129..c42123f94c0 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,8 @@
         "php-http/guzzle6-adapter": "^1.0 || ^2.0",
         "php-http/mock-client": "^1.2",
         "guzzlehttp/psr7": "^1.2",
-        "cache/array-adapter": "^0.4"
+        "cache/array-adapter": "^0.4",
+        "phpstan/phpstan": "^0.12.23"
     },
     "autoload": {
         "psr-4": { "Github\\": "lib/Github/" }
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 00000000000..31545070d13
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,4 @@
+parameters:
+	level: 0
+	paths:
+		- lib