diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d3df41105..6847972e5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,17 +17,6 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
-      - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v1
-        with:
-          install: true
-          driver-opts: network=host
-      - name: Login to Harbor
-        uses: docker/login-action@v1
-        with:
-          registry: harbor.prod-aws.phylum.dev
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_TOKEN }}
       - name: Build Linux
         run: docker build lib/ --file lib/Dockerfile.linux --tag static-build
       - name: Build MacOS
@@ -47,8 +36,6 @@ jobs:
           cp lib/src/bin/phylum.bash phylum-cli-release/
           cp phylum-linux-x86_64 phylum-cli-release/
           cp phylum-macos-x86_64 phylum-cli-release/
-          cp phylum-linux-x86_64.minisig .
-          cp phylum-macos-x86_64.minisig .
           cp lib/install.sh .
           cp lib/src/bin/settings.yaml .
           cp lib/src/bin/phylum.bash .
@@ -61,7 +48,7 @@ jobs:
         uses: haya14busa/action-cond@v1
         id: preRelease
         with:
-          cond: ${{ contains(github.event.release.tag_name, 'rc') }}
+          cond: ${{ contains(github.ref, 'rc') }}
           if_true: 'true'  # string value
           if_false: 'false' # string value
       - uses: softprops/action-gh-release@v0.1.7
diff --git a/lib/Dockerfile.linux b/lib/Dockerfile.linux
index 9e06f1fac..039722267 100644
--- a/lib/Dockerfile.linux
+++ b/lib/Dockerfile.linux
@@ -13,7 +13,7 @@ ARG RUST_TARGET=x86_64-unknown-linux-musl
 # We use a multi-stage build here to get access to a full system when building
 #  but still run in a scratch image
 #
-FROM harbor.prod-aws.phylum.dev/phylum/rust/rust-musl:1.54.0 as planner
+FROM phylumdev/rust-musl-builder:1.54.0 as planner
 ARG APP_PATH
 ARG CARGO_HOME
 USER root
@@ -22,7 +22,7 @@ RUN cargo install cargo-chef
 COPY . .
 RUN cargo chef prepare  --recipe-path recipe.json
 
-FROM harbor.prod-aws.phylum.dev/phylum/rust/rust-musl:1.54.0 as cacher
+FROM phylumdev/rust-musl-builder:1.54.0 as cacher
 ARG APP_PATH
 ARG CARGO_HOME
 USER root
@@ -31,7 +31,7 @@ RUN cargo install cargo-chef
 COPY --from=planner ${APP_PATH}/recipe.json recipe.json
 RUN cargo chef cook --release --recipe-path recipe.json
 
-FROM harbor.prod-aws.phylum.dev/phylum/rust/rust-musl:1.54.0
+FROM phylumdev/rust-musl-builder:1.54.0
 ARG APP_PATH
 ARG CARGO_HOME
 USER root