diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52903088..d2f2e40d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,11 +42,17 @@ env:
   BELLMAN_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
   NEPTUNE_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
   DEBIAN_FRONTEND: noninteractive
+  # Standardize NVCC flags across all jobs
+  NVCC_PREPEND_FLAGS: "-ccbin /usr/bin/g++-12"
 
 jobs:
   check:
     name: Check code style and run linters
     runs-on: ubuntu-latest
+    env:
+      CC: gcc-12
+      CXX: g++-12
+      NVCC_PREPEND_FLAGS: "-ccbin /usr/bin/g++-12 -allow-unsupported-compiler"
     steps:
       - uses: actions/checkout@v4
         with:
@@ -57,6 +63,10 @@ jobs:
         with:
           submodules: recursive
           ref: ${{ github.event.inputs.ref }}
+      - name: Install GCC 12
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-12 g++-12
       - name: Run shellcheck
         run: shellcheck ./install-filcrypto
       - name: Run cargo fmt
@@ -100,6 +110,14 @@ jobs:
         with:
           submodules: recursive
           ref: ${{ github.event.inputs.ref }}
+      - if: runner.os == 'Linux'
+        name: Install GCC 12 and set environment
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-12 g++-12
+          echo "CC=gcc-12" >> $GITHUB_ENV
+          echo "CXX=g++-12" >> $GITHUB_ENV
+          echo "NVCC_PREPEND_FLAGS=-ccbin /usr/bin/g++-12 -allow-unsupported-compiler" >> $GITHUB_ENV
       - if: runner.os == 'macOS'
         run: cd rust && cargo fetch
       - name: Build project
@@ -142,7 +160,6 @@ jobs:
     env:
       CC: gcc-12
       CXX: g++-12
-      NVCC_PREPEND_FLAGS: "-ccbin /usr/bin/g++-12"
     steps:
       - uses: actions/checkout@v4
         with:
@@ -153,5 +170,9 @@ jobs:
         with:
           submodules: recursive
           ref: ${{ github.event.inputs.ref }}
+      - name: Install GCC 12
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-12 g++-12
       - name: Build project with `FFI_USE_CUDA_SUPRASEAL=1`
         run: FFI_BUILD_FROM_SOURCE=1 FFI_USE_CUDA_SUPRASEAL=1 make
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index cbad7815..4b080183 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -1269,6 +1269,7 @@ dependencies = [
  "safer-ffi",
  "serde",
  "serde_json",
+ "supraseal-c2",
  "tempfile",
  "yastl",
 ]
@@ -3343,9 +3344,9 @@ dependencies = [
 
 [[package]]
 name = "sppark"
-version = "0.1.11"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16bf457036c0a778140ce4c3bcf9ff30c5c70a9d9c0bb04fe513af025b647b2c"
+checksum = "d9c900139f3f6fdc8db217881a946adf00e935102fdd82b0e1bc19bacbffa311"
 dependencies = [
  "cc",
  "which",
@@ -3661,9 +3662,7 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "supraseal-c2"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd636fe8d238305b3022c399f9973c88f58d75212ef36d2ff1ebd51e20285d5b"
+version = "0.1.2"
 dependencies = [
  "blst",
  "cc",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 421fd9b4..56fe06de 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -33,8 +33,8 @@ rayon = "1.10.0"
 anyhow = "1.0.97"
 serde_json = "1.0.140"
 rust-gpu-tools = { version = "0.7", optional = true, default-features = false }
-fvm4 = { package = "fvm", version = "~4.7.4", default-features = false, features = ["verify-signature", "nv28-dev"] }
-fvm4_shared = { package = "fvm_shared", version = "~4.7.4" }
+fvm4 = { package = "fvm", version = "~4.7.3", default-features = false, features = ["verify-signature"] }
+fvm4_shared = { package = "fvm_shared", version = "~4.7.3" }
 fvm3 = { package = "fvm", version = "~3.13.0", default-features = false }
 fvm3_shared = { package = "fvm_shared", version = "~3.13.0" }
 fvm2 = { package = "fvm", version = "~2.11.0", default-features = false }
@@ -48,6 +48,7 @@ serde = "1.0.219"
 safer-ffi = { version = "0.1.13", features = ["proc_macros"] }
 filecoin-proofs-api = { version = "19.0", default-features = false }
 yastl = "0.1.2"
+supraseal-c2 = "0.1.2"
 
 [dev-dependencies]
 memmap2 = "0.9"