diff --git a/libraries/physics/src/PhysicsEngine.h b/libraries/physics/src/PhysicsEngine.h
index 9f2f1aff5c..07de0e7b5c 100644
--- a/libraries/physics/src/PhysicsEngine.h
+++ b/libraries/physics/src/PhysicsEngine.h
@@ -41,8 +41,8 @@ public:
     void* _b; // ObjectMotionState pointer
 };
 
-typedef std::map<ContactKey, ContactInfo> ContactMap;
-typedef std::vector<Collision> CollisionEvents;
+using ContactMap = std::map<ContactKey, ContactInfo>;
+using CollisionEvents = std::vector<Collision>;
 
 class PhysicsEngine {
 public: