diff --git a/tests/GalSim b/tests/GalSim
index 11c2a0ba..a5afbf51 160000
--- a/tests/GalSim
+++ b/tests/GalSim
@@ -1 +1 @@
-Subproject commit 11c2a0ba7d984a7bd06ad07114fc52b960192f71
+Subproject commit a5afbf510dc747f5667f61c742b9dd3630643988