diff --git a/ext/riscv-opcodes b/ext/riscv-opcodes
index 946eb6738..b30cec9d8 160000
--- a/ext/riscv-opcodes
+++ b/ext/riscv-opcodes
@@ -1 +1 @@
-Subproject commit 946eb673874b3a0f2474d1424dc28bc7ee53c306
+Subproject commit b30cec9d8d37a1f81623edfb8f70d466ef352d18