diff --git a/ext/riscv-opcodes b/ext/riscv-opcodes
index 946eb6738..d6b540068 160000
--- a/ext/riscv-opcodes
+++ b/ext/riscv-opcodes
@@ -1 +1 @@
-Subproject commit 946eb673874b3a0f2474d1424dc28bc7ee53c306
+Subproject commit d6b540068aeb1ec442f1bb2d30f0b15860984aad