diff --git a/test/fixtures/prism b/test/fixtures/prism
index 27c24fdc0d..a8a7c6b77d 160000
--- a/test/fixtures/prism
+++ b/test/fixtures/prism
@@ -1 +1 @@
-Subproject commit 27c24fdc0d8c9d14f819f83050d573315e8474ee
+Subproject commit a8a7c6b77de24d3873d8e09c2dee86ad5d453478