diff --git a/deps/ionpump b/deps/ionpump
index 427b337c604c4a560c83ff4d67c7f46e2d7317e7..19a15caa600f79cc66a1a75369252734a3025e52 160000
--- a/deps/ionpump
+++ b/deps/ionpump
@@ -1 +1 @@
-Subproject commit 427b337c604c4a560c83ff4d67c7f46e2d7317e7
+Subproject commit 19a15caa600f79cc66a1a75369252734a3025e52