diff --git a/seika/math/se_math.c b/seika/math/se_math.c
index e48ccd5..ab988c3 100644
--- a/seika/math/se_math.c
+++ b/seika/math/se_math.c
@@ -13,7 +13,7 @@ SEVector2 se_math_vec2_lerp(const SEVector2* v1, const SEVector2* v2, float t) {
 }
 
 // --- Rect2 --- //
-bool se_rect2_does_rectangles_overlap(SERect2* sourceRect, SERect2* targetRect) {
+bool se_rect2_does_rectangles_overlap(const SERect2* sourceRect, const SERect2* targetRect) {
     return (sourceRect->x + sourceRect->w >= targetRect->x) &&
            (targetRect->x + targetRect->w >= sourceRect->x) &&
            (sourceRect->y + sourceRect->h >= targetRect->y) &&
diff --git a/seika/math/se_math.h b/seika/math/se_math.h
index 49b5056..22443ff 100644
--- a/seika/math/se_math.h
+++ b/seika/math/se_math.h
@@ -48,7 +48,7 @@ typedef struct SERect2 {
     float h;
 } SERect2;
 
-bool se_rect2_does_rectangles_overlap(SERect2* sourceRect, SERect2* targetRect);
+bool se_rect2_does_rectangles_overlap(const SERect2* sourceRect, const SERect2* targetRect);
 
 //--- SETransform2D ---//
 typedef struct SETransform2D {
diff --git a/vcpkg.json b/vcpkg.json
index 63a906b..8dbee4a 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "seika",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "dependencies": [
     {
       "name": "sdl2",