diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
new file mode 100644
index 0000000..0b1c168
--- /dev/null
+++ b/.github/workflows/elixir.yml
@@ -0,0 +1,57 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Elixir CI
+
+on:
+  push:
+    branches: ["github-actions"]
+  pull_request:
+    branches: ["github-actions"]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: OTP ${{ matrix.otp }} / Elixir ${{ matrix.elixir }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        otp: ['25.3']
+        elixir: ['1.15.2']
+    env:
+      MIX_ENV: test
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Set up Elixir
+        uses: actions/setup-elixir@v1
+        with:
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
+      - name: Restore dependencies cache
+        uses: actions/cache@v3
+        with:
+          path: deps
+          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-deps-${{ hashFiles('**/mix.lock') }}
+          restore-keys: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-deps-
+      - name: Restore build cache
+        uses: actions/cache@v3
+        with:
+          path: _build/test
+          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-build-${{ hashFiles('**/mix.lock') }}
+          restore-keys: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-build-
+      - name: Install dependencies
+        run: mix deps.get
+      - name: Compile dependencies
+        run: mix deps.compile
+      - name: Compile
+        run: mix compile --warnings-as-errors
+      - name: Dialyzer
+        run: mix dialyzer --halt-exit-status
+      - name: Run tests
+        run: mix test
diff --git a/mix.exs b/mix.exs
index 5be2e06..03fe51f 100644
--- a/mix.exs
+++ b/mix.exs
@@ -21,7 +21,7 @@ defmodule ExJsonSchema.Mixfile do
       preferred_cli_env: [coveralls: :test, dialyzer: :test],
       dialyzer: [
         plt_add_apps: [:ex_unit],
-        plt_core_path: ".",
+        plt_core_path: "_build/#{Mix.env()}",
         plt_add_deps: :transitive
       ]
     ]