diff --git a/components/SDL2/src/image/external/libwebp-1.0.2/examples/anim_diff.c b/components/SDL2/src/image/external/libwebp-1.0.2/examples/anim_diff.c
index 7ffabc8fd4a16f32ed0d920d12b7eba4611942ae..9dedeb743d52bac8ff36a7858760582704183bee 100644
--- a/components/SDL2/src/image/external/libwebp-1.0.2/examples/anim_diff.c
+++ b/components/SDL2/src/image/external/libwebp-1.0.2/examples/anim_diff.c
@@ -106,7 +106,7 @@ static void MinimizeAnimationFrames(AnimatedImage* const img, int max_diff) {
 
 static int CompareValues(uint32_t a, uint32_t b, const char* output_str) {
   if (a != b) {
-    fprintf(stderr, "%s: %d vs %d\n", output_str, a, b);
+    fprintf(stderr, "%s: %u vs %u\n", output_str, a, b);
     return 0;
   }
   return 1;
@@ -178,13 +178,13 @@ static int CompareAnimatedImagePair(const AnimatedImage* const img1,
                    premultiply, &max_diff, &psnr);
     if (min_psnr > 0.) {
       if (psnr < min_psnr) {
-        fprintf(stderr, "Frame #%d, psnr = %.2lf (min_psnr = %f)\n", i,
+        fprintf(stderr, "Frame #%u, psnr = %.2lf (min_psnr = %f)\n", i,
                 psnr, min_psnr);
         ok = 0;
       }
     } else {
       if (max_diff != 0) {
-        fprintf(stderr, "Frame #%d, max pixel diff: %d\n", i, max_diff);
+        fprintf(stderr, "Frame #%u, max pixel diff: %d\n", i, max_diff);
         ok = 0;
       }
     }