diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70da612190d4..5a2d37ed7eb5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,38 +9,44 @@ on:
   workflow_dispatch:
 
 jobs:
-  build:
+  build-ubuntu-x86:
     runs-on: buildjet-32vcpu-ubuntu-2204
     steps:
       - name: Install Rust
-        uses: risc0/actions-rs-toolchain@v1
+        uses: actions-rs/toolchain@v1
         with:
             toolchain: stable
-      - uses: lukka/get-cmake@v3.27.4
 
-      - name: Check out risc0/rust
+      - name: Install ninja and cmake
+        uses: lukka/get-cmake@v3.27.4
+
+      - name: Check out succinctlabs/rust
         uses: actions/checkout@v3
         with:
           submodules: 'recursive'
           path: rust
           fetch-depth: 0
 
-      - name: Check out risc0/risc0
+      - name: Check out succinctlabs/vm
         uses: actions/checkout@v3
         with:
-          repository: risc0/risc0
-          ref: main
-          path: risc0
+          repository: succinctlabs/vm
+          path: vm
+          ref: john/cargo-succinct-build-toolchain
+          token: ${{ secrets.PRIVATE_PULL_TOKEN }}
+
+      - name: Install cargo prove
+        run: cargo install --locked --path .
+        working-directory: vm/cli
 
-      - name: Build
-        run: GITHUB_ACTIONS=false RISC0_BUILD_DIR=$GITHUB_WORKSPACE cargo run --bin cargo-risczero -- risczero build-toolchain
-        working-directory: risc0
+      - name: Build toolchain
+        run: GITHUB_ACTIONS=false GITHUB_ACCESS_TOKEN=${{ secrets.PRIVATE_PULL_TOKEN }} SUCCINCT_BUILD_DIR=$GITHUB_WORKSPACE cargo prove build-toolchain
 
       - name: Archive build output
         uses: actions/upload-artifact@v3
         with:
-          name: rust-toolchain-${{ matrix.triple }}
+          name: rust-toolchain-x86_64-unknown-linux-gnu
           path: |
             rust/build/x86_64-unknown-linux-gnu/stage2
             !rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/src
-            !rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/rustc-src
+            !rust/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/rustc-src
\ No newline at end of file