diff --git a/tests/toit-png-tools b/tests/toit-png-tools
index 04d4ec1..e54e0a2 160000
--- a/tests/toit-png-tools
+++ b/tests/toit-png-tools
@@ -1 +1 @@
-Subproject commit 04d4ec1ed143980d350cf4a92c7b2b522f220c4a
+Subproject commit e54e0a2810710a05bbc42dad80af884828d6f815