diff --git a/src/Routing/Route/PrefixRoute.php b/src/Routing/Route/PrefixRoute.php
index 5aeb865..00a9b1f 100644
--- a/src/Routing/Route/PrefixRoute.php
+++ b/src/Routing/Route/PrefixRoute.php
@@ -21,7 +21,7 @@ class PrefixRoute extends Route
      * Examines a request target to see if it is a match for the route.
      *
      * @param string $requestTarget
-     * @return boolean
+     * @return bool
      */
     public function matchesRequestTarget(string $requestTarget): bool
     {
diff --git a/src/Routing/Route/StaticRoute.php b/src/Routing/Route/StaticRoute.php
index 572827b..fec8cdb 100644
--- a/src/Routing/Route/StaticRoute.php
+++ b/src/Routing/Route/StaticRoute.php
@@ -16,7 +16,7 @@ class StaticRoute extends Route
      * Examines a request target to see if it is a match for the route.
      *
      * @param string $requestTarget
-     * @return boolean
+     * @return bool
      */
     public function matchesRequestTarget(string $requestTarget): bool
     {