diff --git a/third_party/nmigen b/third_party/nmigen
index 1ad6e3207..4a59d5d17 160000
--- a/third_party/nmigen
+++ b/third_party/nmigen
@@ -1 +1 @@
-Subproject commit 1ad6e3207f02e913407867dddddb8f50fad0ced4
+Subproject commit 4a59d5d1797c3c39b8f08d0ed9e2abbf71739cda