diff --git a/contrib/libpqxx b/contrib/libpqxx
index 63e20f9485b..a4e83483927 160000
--- a/contrib/libpqxx
+++ b/contrib/libpqxx
@@ -1 +1 @@
-Subproject commit 63e20f9485b8cbeabf99008123248fc9f033e766
+Subproject commit a4e834839270a8c1f7ff1db351ba85afced3f0e2