diff --git a/test/test-suite/images/big-height.webp b/test/test-suite/images/big-height.webp
index 752a169641..2e0700c9d5 100644
Binary files a/test/test-suite/images/big-height.webp and b/test/test-suite/images/big-height.webp differ
diff --git a/test/test-suite/test_foreign.py b/test/test-suite/test_foreign.py
index 0533d1691f..91da4f1809 100644
--- a/test/test-suite/test_foreign.py
+++ b/test/test-suite/test_foreign.py
@@ -902,7 +902,7 @@ def webp_valid(im):
         # Animated WebP roundtrip
         x = pyvips.Image.new_from_file(WEBP_ANIMATED_FILE, n=-1)
         assert x.width == 13
-        assert x.height == 16393
+        assert x.height == 16731
         buf = x.webpsave_buffer()
 
     @skip_if_no("analyzeload")