diff --git a/Makefile b/Makefile
index 11482906..7593cbdc 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ export RUSTFLAGS=-Dwarnings -Dclippy::all -Dclippy::pedantic
 
 CARGO_HACK_ARGS=--feature-powerset --exclude-features default --group-features base64,serde,arbitrary,hex
 
-XDRGEN_VERSION=aedb93da
+XDRGEN_VERSION=b405294c
 CARGO_DOC_ARGS?=--open
 
 all: build test