diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 54391f6..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,76 +0,0 @@
-version: 2.1
-
-defaults: &defaults
-  working_directory: ~/repo
-  docker:
-    - image: cimg/node:14.19
-
-_steps:
-  restore_npm_cache: &restore_npm_cache
-    restore_cache:
-      keys:
-        - npm-v1-{{ .Branch }}-{{ checksum "package-lock.json" }}
-        - npm-v1-{{ .Branch }}-
-        - npm-v1-
-  save_npm_cache: &save_npm_cache
-    save_cache:
-      paths:
-        - .npm-cache
-      key: npm-v1-{{ .Branch }}-{{ checksum "package-lock.json" }}
-  configure_registry_auth: &configure_registry_auth
-     run:
-       name: Configure registry auth
-       command: echo "//registry.npmjs.org/:_authToken=$NPM_AUTH_TOKEN" >> ~/repo/.npmrc
-
-jobs:
-  test:
-    <<: *defaults
-    steps:
-      - checkout
-      - *restore_npm_cache
-      - *configure_registry_auth
-      - run: npm ci --cache .npm-cache
-      - run:
-          name: Run coverage tests
-          command: npm run test:coverage
-      - run:
-          name: Run build
-          command: npm run build
-      - persist_to_workspace:
-          root: ~/repo
-          paths: .
-      - store_artifacts:
-          path: ~/repo/dist
-      - *save_npm_cache
-  deploy:
-    <<: *defaults
-    steps:
-      - attach_workspace:
-          at: ~/repo
-      - *configure_registry_auth
-      - run:
-          name: Publish package
-          # For now we only publish on tags here and assume the version number is already correct.
-          # If we change this then we need to automate updating the version number.
-          command: npm publish $(if [ -z "$CIRCLE_TAG" ]; then echo "--tag next"; fi)
-
-workflows:
-  version: 2
-  test-deploy:
-    jobs:
-      - test:
-          context:
-            - "NPM Read"
-          filters:
-            tags:
-              only: /^v.*/
-      - deploy:
-          context:
-            - "NPM Write"
-          requires:
-            - test
-          filters:
-            tags:
-              only: /^v.*/
-            branches:
-              ignore: /.*/
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index af879ce..f331876 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,19 +1,26 @@
-name: Test & Build
-
+name: build
 on:
+  release:
+    types: [created]
   push:
-    branches: '*'
-  pull_request:
-    branches: '*'
-
+    branches:
+      - '**'
 jobs:
-  test-build:
-    name: Run tests and build project
+  build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: '20.x'
+          registry-url: 'https://registry.npmjs.org'
+          cache: npm
       - run: npm ci
+      - run: npm run test:coverage
       - run: npm run build
+      - run: npm publish
+        if: github.event_name == 'release' && github.event.action == 'created'
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}