diff --git a/lib/types/utils.ts b/lib/types/utils.ts
index 4a6496c3..5ba040fa 100644
--- a/lib/types/utils.ts
+++ b/lib/types/utils.ts
@@ -79,6 +79,8 @@ export function findBox(input: Uint8Array, boxName: string, offset: number) {
     const box = readBox(input, offset)
     if (!box) break
     if (box.name === boxName) return box
-    offset += box.size
+    // Fix the infinite loop by ensuring offset always increases
+    // If box.size is 0, advance by at least 8 bytes (the size of the box header)
+    offset += box.size > 0 ? box.size : 8
   }
 }
diff --git a/package.json b/package.json
index 6c7ef2f3..c241dd15 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "image-size",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "get dimensions of any image file",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",