diff --git a/verilog/rtl/yifive/ycr2c b/verilog/rtl/yifive/ycr2c
index 10f852e..a64f68b 160000
--- a/verilog/rtl/yifive/ycr2c
+++ b/verilog/rtl/yifive/ycr2c
@@ -1 +1 @@
-Subproject commit 10f852e4cca80b8243ec9a74e5536bd827da5246
+Subproject commit a64f68b22b7087d80d12d1c2e767510acfd42b6b