diff --git a/.phive/phars.xml b/.phive/phars.xml
index 132b78c..390ea22 100644
--- a/.phive/phars.xml
+++ b/.phive/phars.xml
@@ -2,4 +2,5 @@
 <phive xmlns="https://phar.io/phive">
   <phar name="php-cs-fixer" version="^2.16" installed="2.16.3" location="./tools/php-cs-fixer" copy="true"/>
   <phar name="psalm" version="^3.8" installed="3.11.5" location="./tools/psalm" copy="true"/>
+  <phar name="roave/backwardcompatibilitycheck" version="^4.4.0" installed="4.4.0" location="./tools/roave-backward-compatibility-check" copy="true"/>
 </phive>
diff --git a/tools/roave-backward-compatibility-check b/tools/roave-backward-compatibility-check
new file mode 100755
index 0000000..96413b5
Binary files /dev/null and b/tools/roave-backward-compatibility-check differ