diff --git a/nextpnr-src b/nextpnr-src
index 6683fd4..e3f4578 160000
--- a/nextpnr-src
+++ b/nextpnr-src
@@ -1 +1 @@
-Subproject commit 6683fd4ada386e56c24585a428a6138a9eb2b10a
+Subproject commit e3f4578b3b331fb1b971b07376eef2b058a3e6d9