diff --git a/toolchains/esp-tools/riscv-isa-sim b/toolchains/esp-tools/riscv-isa-sim
index 2f821102..88c223fe 160000
--- a/toolchains/esp-tools/riscv-isa-sim
+++ b/toolchains/esp-tools/riscv-isa-sim
@@ -1 +1 @@
-Subproject commit 2f8211022e7f69aee2b41454a37a67395aa9b3e9
+Subproject commit 88c223fe7a83c11bd8a4583d24845821e86fb3d0