diff --git a/.github/workflows/CargoPublish.yml b/.github/workflows/CargoPublish.yml
index edb331cd6..5d80a0523 100644
--- a/.github/workflows/CargoPublish.yml
+++ b/.github/workflows/CargoPublish.yml
@@ -44,43 +44,79 @@ jobs:
           else
             VERSION="${{ github.ref }}"
             VERSION="${VERSION#refs/heads/release/v}"
+            echo "VERSION=$VERSION" >> $GITHUB_ENV
           fi
           ./dev/verify-version.sh "$VERSION" hyperlight-common hyperlight-guest hyperlight-guest-bin hyperlight-host hyperlight-component-util hyperlight-component-macro
 
+      - name: Determine which crates need publishing
+        run: |
+          needs_publish() {
+            local crate=$1
+            local crate_env_var=$(echo "$crate" | tr '[:lower:]' '[:upper:]' | tr '-' '_')
+
+            if [ -z "$VERSION" ]; then
+              echo "No version set (dry run?), skipping crates.io existence checks."
+              echo "PUBLISH_${crate_env_var}=true" >> "$GITHUB_ENV"
+              return
+            fi
+
+            if curl -s "https://crates.io/api/v1/crates/$crate/$VERSION" | jq -e .version > /dev/null; then
+              echo "PUBLISH_${crate_env_var}=false" >> "$GITHUB_ENV"
+              echo "✅ $crate@$VERSION already exists."
+            else
+              echo "PUBLISH_${crate_env_var}=true" >> "$GITHUB_ENV"
+              echo "🚀 $crate@$VERSION will be published."
+            fi
+          }
+          
+          needs_publish hyperlight-common
+          needs_publish hyperlight-guest
+          needs_publish hyperlight-guest-bin
+          needs_publish hyperlight-component-util
+          needs_publish hyperlight-component-macro
+          needs_publish hyperlight-host
+
       - name: Publish hyperlight-common
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_common/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_COMMON != 'false'
 
       - name: Publish hyperlight-guest
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_guest/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_GUEST != 'false'
 
       - name: Publish hyperlight-guest-bin
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_guest_bin/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_GUEST_BIN != 'false'
+        
       - name: Publish hyperlight-component-util
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_component_util/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_COMPONENT_UTIL != 'false'
 
       - name: Publish hyperlight-component-macro
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_component_macro/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_COMPONENT_MACRO != 'false'
          
       - name: Publish hyperlight-host
         continue-on-error: ${{ inputs.dry_run }}
         run: cargo publish --manifest-path ./src/hyperlight_host/Cargo.toml ${{ inputs.dry_run && '--dry-run' || '' }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_PUBLISH_TOKEN }}
+        if: env.PUBLISH_HYPERLIGHT_HOST != 'false'
 
 
       # TODO: Do we want to publish hyperlight-guest-capi to crates.io given that it's not for Rust consumption?