diff --git a/packages/isaac-typescript-definitions/src/types/classes/EntityPlayer.d.ts b/packages/isaac-typescript-definitions/src/types/classes/EntityPlayer.d.ts
index a39a29334..530a35c80 100644
--- a/packages/isaac-typescript-definitions/src/types/classes/EntityPlayer.d.ts
+++ b/packages/isaac-typescript-definitions/src/types/classes/EntityPlayer.d.ts
@@ -680,7 +680,7 @@ declare global {
      */
     GetHearts: () => int;
 
-    GetItemState: () => int;
+    GetItemState: () => CollectibleType;
     GetJarFlies: () => int;
     GetJarHearts: () => int;
     GetLaserOffset: (laserOffset: LaserOffset, direction: Vector) => Vector;
diff --git a/packages/isaac-typescript-definitions/src/types/classes/EntityPtr.d.ts b/packages/isaac-typescript-definitions/src/types/classes/EntityPtr.d.ts
index dddce0734..04a578034 100644
--- a/packages/isaac-typescript-definitions/src/types/classes/EntityPtr.d.ts
+++ b/packages/isaac-typescript-definitions/src/types/classes/EntityPtr.d.ts
@@ -1,7 +1,7 @@
-declare function EntityPtr(this: void, entity: Entity): EntityPtr;
+declare function EntityPtr(this: void, entity: Entity | undefined): EntityPtr;
 
 declare interface EntityPtr extends IsaacAPIClass {
-  SetReference: (ref: Entity) => void;
+  SetReference: (ref: Entity | undefined) => void;
 
   readonly Ref?: Entity;
 }