diff --git a/.github/workflows/c910v.yml b/.github/workflows/c910v.yml
index c5b497316f..775c60411b 100644
--- a/.github/workflows/c910v.yml
+++ b/.github/workflows/c910v.yml
@@ -14,8 +14,8 @@ jobs:
     if: "github.repository == 'OpenMathLib/OpenBLAS'"
     runs-on: ubuntu-latest
     env:
-      xuetie_toolchain: https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1698113812618
-      toolchain_file_name: Xuantie-900-gcc-linux-5.10.4-glibc-x86_64-V2.8.0-20231018.tar.gz
+      xuetie_toolchain: https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1744886347539
+      toolchain_file_name: Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V3.0.2-20250410.tar.gz
     strategy:
       fail-fast: false
       matrix:
@@ -77,7 +77,7 @@ jobs:
         run: |
             wget ${xuetie_toolchain}/${toolchain_file_name}
             tar -xvf ${toolchain_file_name} -C /opt
-            export PATH="/opt/Xuantie-900-gcc-linux-5.10.4-glibc-x86_64-V2.8.0/bin:$PATH"
+            export PATH="/opt/Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V3.0.2/bin:$PATH"
 
             make CC='ccache ${{ matrix.triple }}-gcc -static' FC='ccache ${{ matrix.triple }}-gfortran -static' ${{ matrix.opts }} HOSTCC='ccache gcc' -j$(nproc)
 
diff --git a/Makefile.prebuild b/Makefile.prebuild
index b7d695a750..04d8cec002 100644
--- a/Makefile.prebuild
+++ b/Makefile.prebuild
@@ -52,7 +52,7 @@ TARGET_FLAGS = -mips64r6
 endif
 
 ifeq ($(TARGET), C910V)
-TARGET_FLAGS = -march=rv64gcv0p7_zfh_xtheadc -mabi=lp64d
+TARGET_FLAGS = -march=rv64gc_zfh_xtheadc_xtheadvector -mabi=lp64d
 endif
 
 ifeq ($(TARGET), CK860FV)
diff --git a/Makefile.riscv64 b/Makefile.riscv64
index 0ee26c1b5c..487529c44d 100644
--- a/Makefile.riscv64
+++ b/Makefile.riscv64
@@ -1,6 +1,6 @@
 ifeq ($(CORE), C910V)
-CCOMMON_OPT += -march=rv64imafdcv0p7_zfh_xtheadc -mabi=lp64d -mtune=c920
-FCOMMON_OPT += -march=rv64imafdcv0p7_zfh_xtheadc -mabi=lp64d -mtune=c920 -static
+CCOMMON_OPT += -march=rv64imafdc_zfh_xtheadc_xtheadvector -mabi=lp64d -mtune=c920
+FCOMMON_OPT += -march=rv64imafdc_zfh_xtheadc_xtheadvector -mabi=lp64d -mtune=c920 -static
 endif
 ifeq ($(CORE), x280)
 CCOMMON_OPT += -march=rv64imafdcv_zba_zbb_zfh_zvl512b -mabi=lp64d