diff --git a/.github/workflows/build-assets.yml b/.github/workflows/build-assets.yml
index eea28d62..b5103502 100644
--- a/.github/workflows/build-assets.yml
+++ b/.github/workflows/build-assets.yml
@@ -36,12 +36,6 @@ jobs:
       - name: Make core
         run: make core
 
-      - name: Upload core binary to artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: engine
-          path: target/wasm32-wasip1/release/javy_core.wasm
-
       - name: Upload quickjs_provider to artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -130,11 +124,6 @@ jobs:
         run: sudo apt-get update && sudo apt-get --assume-yes install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
         if: matrix.target == 'aarch64-unknown-linux-gnu'
 
-      - uses: actions/download-artifact@v4
-        with:
-          name: engine
-          path: target/wasm32-wasip1/release/
-
       - uses: actions/download-artifact@v4
         with:
           name: provider
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 42b25191..0a0e8759 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,12 +54,6 @@ jobs:
       - name: Lint Runner
         run: cargo clippy --package=javy-runner -- -D warnings
 
-      - name: Upload core binary to artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: engine
-          path: target/wasm32-wasip1/release/javy_core.wasm
-
       - name: Upload quickjs_provider to artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -77,11 +71,6 @@ jobs:
         with:
           os: linux
 
-      - uses: actions/download-artifact@v4
-        with:
-          name: engine
-          path: target/wasm32-wasip1/release/
-
       - uses: actions/download-artifact@v4
         with:
           name: provider