diff --git a/.travis.yml b/.travis.yml
index a4bb07c8..d75df92c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -53,3 +53,7 @@ jobs:
         - if [[ ! $(php -m | grep -si xdebug) ]]; then echo "xdebug required for coverage"; exit 1; fi
       script:
         - ./vendor/bin/humbug
+
+    - stage: Static analysis
+      script:
+        - ./vendor/bin/phpstan analyse -c phpstan.neon -l max src test
diff --git a/composer.json b/composer.json
index 18b11d96..9377e297 100644
--- a/composer.json
+++ b/composer.json
@@ -25,6 +25,7 @@
     "require-dev": {
         "humbug/humbug": "dev-master@dev",
         "mikey179/vfsStream": "^1.6",
+        "phpstan/phpstan": "^0.9.0@dev",
         "phpunit/phpunit": "^6.4",
         "squizlabs/php_codesniffer": "^3.1",
         "symfony/proxy-manager-bridge": "^3.3|^4.0",
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 00000000..dd22965e
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,5 @@
+parameters:
+    ignoreErrors:
+        # Ignore PHPUnit mock stuff
+        - '#PHPUnit_Framework_MockObject_MockObject.* given#'
+        - '#does not accept PHPUnit_Framework_MockObject_MockObject#'
diff --git a/test/Config/ContainerConfigurationTest.php b/test/Config/ContainerConfigurationTest.php
index 00609f15..098bb66f 100644
--- a/test/Config/ContainerConfigurationTest.php
+++ b/test/Config/ContainerConfigurationTest.php
@@ -11,7 +11,7 @@
 final class ContainerConfigurationTest extends \PHPUnit\Framework\TestCase
 {
     /**
-     * @var CompilerPassInterface
+     * @var CompilerPassInterface|\PHPUnit_Framework_MockObject_MockObject
      */
     private $pass;