diff --git a/.github/workflows/ci-contracts-upload-binaries.yml b/.github/workflows/ci-contracts-upload-binaries.yml
index 98c41478a8..b53f6a37fb 100644
--- a/.github/workflows/ci-contracts-upload-binaries.yml
+++ b/.github/workflows/ci-contracts-upload-binaries.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform: [ arc-ubuntu-22.04 ]
+        platform: [ arc-linux-latest-dind ]
 
     runs-on: ${{ matrix.platform }}
     env:
@@ -28,18 +28,11 @@ jobs:
           mkdir -p $OUTPUT_DIR
           echo $OUTPUT_DIR
 
-      - name: Install Rust stable
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          target: wasm32-unknown-unknown
-          override: true
+      - name: Build contracts
+        run: make optimize-contracts
 
-      - name: Install cosmwasm-check
-        run: cargo install cosmwasm-check
-
-      - name: Build release contracts
-        run: make publish-contracts
+      - name: Check optimized contracts
+        run: make docker-check-contracts
 
       - name: Prepare build output
         shell: bash
diff --git a/Makefile b/Makefile
index c69797c9e3..f5654f816a 100644
--- a/Makefile
+++ b/Makefile
@@ -154,6 +154,7 @@ CONTRACTS_OUT_DIR = contracts/artifacts
 #
 COSMWASM_OPTIMIZER_IMAGE ?= cosmwasm/optimizer:0.17.0
 COSMWASM_OPTIMIZER_PLATFORM ?= linux/amd64
+COSMWASM_CHECK_IMAGE ?= rust:1.88
 
 # Ensure clean build environment and run the optimizer
 optimize-contracts:
@@ -179,6 +180,13 @@ optimize-contracts:
 	# Cleanup temporary artefacts directory
 	@rm -rf artifacts 2>/dev/null || true
 
+# Check artifacts with cosmwasm-check inside the optimizer image
+docker-check-contracts:
+	@docker run --rm --platform $(COSMWASM_OPTIMIZER_PLATFORM) \
+	  -v $(CURDIR):/code --workdir /code \
+	  --entrypoint /bin/sh \
+	  $(COSMWASM_CHECK_IMAGE) -lc 'apt-get update && apt-get install -y --no-install-recommends llvm-dev libclang-dev pkg-config && export PATH="/usr/local/cargo/bin:/usr/local/rustup/bin:$$PATH" && cargo install cosmwasm-check --locked && WASMER_ENGINE=universal WASMER_COMPILER=singlepass cosmwasm-check contracts/artifacts/*.wasm'
+
 wasm-opt-contracts:
 	@for WASM in $(WASM_CONTRACT_DIR)/*.wasm; do \
 	  echo "Running wasm-opt on $$WASM"; \