diff --git a/.github/workflows/tests_on_pr.yml b/.github/workflows/tests_on_pr.yml
new file mode 100644
index 0000000..7c90994
--- /dev/null
+++ b/.github/workflows/tests_on_pr.yml
@@ -0,0 +1,35 @@
+name: Run unit tests on PR
+
+on:
+  pull_request: ~
+  workflow_dispatch: ~
+
+jobs:
+
+  # Run unit tests
+  tests:
+    name: 'Run unit tests'
+    runs-on: ubuntu-latest
+    steps:
+      # Checkout repository
+      - uses: actions/checkout@v3
+
+      # Setup Dart SDK
+      - uses: dart-lang/setup-dart@main
+
+      # Set temporary version number
+      - name: Set temporary version number
+        uses: jacobtomlinson/gha-find-replace@2.0.0
+        with:
+          find: "VERSIONADDEDBYGITHUB"
+          replace: "1.0.0"
+          regex: false
+
+      # Minimal package setup
+      - name: Install dependencies
+        run: dart pub get
+        working-directory: ${{ inputs.working-directory }}
+
+      # Run unit tests
+      - name: Run unit tests
+        run: make unit_tests
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f7347bf
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,40 @@
+## help - Display help about make targets for this Makefile
+help:
+	@cat Makefile | grep '^## ' --color=never | cut -c4- | sed -e "`printf 's/ - /\t- /;'`" | column -s "`printf '\t'`" -t
+
+## unit_tests - Run unit tests
+unit_tests:
+	dart test test/tests.dart
+
+## temp_version - Set temporary version number
+temp_version:
+	@sed -i 's/VERSIONADDEDBYGITHUB/1.0.0/g' pubspec.yaml
+
+
+## github_version - Set version number for GitHub Actions
+github_version:
+	@sed -i 's/1.0.0/VERSIONADDEDBYGITHUB/g' pubspec.yaml
+
+## pull_deps - Pull dependencies
+pull_deps:
+	@make temp_version
+	dart pub get
+	@make github_version
+
+## update_deps - Update dependencies
+update_deps:
+	@make temp_version
+	dart pub upgrade
+	@make github_version
+
+## outdated_deps - Check for outdated dependencies
+outdated_deps:
+	@make temp_version
+	dart pub outdated
+	@make github_version
+
+## json_files - Generate JSON files
+json_files:
+	@make temp_version
+	@dart run build_runner build
+	@make github_version
diff --git a/pubspec.yaml b/pubspec.yaml
index 716b286..11b224f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,10 +4,10 @@ version: VERSIONADDEDBYGITHUB
 repository: https://github.com/nwithan8/dartvcr
 
 environment:
-  sdk: '>=2.18.2 <3.0.0'
+  sdk: '>=2.18.2'
 
 dependencies:
-  http: ^0.13.0
+  http: ^1.1.0
   http_parser: ^4.0.0
   json_annotation: ^4.7.0
   meta: ^1.3.0
@@ -19,7 +19,7 @@ dev_dependencies:
   collection: ^1.15.0
   dependency_validator:
   json_serializable: ^6.0.0
-  lints: ^2.0.0
+  lints: ^3.0.0
   mockito: ^5.0.0
   pub_semver:
   test: ^1.16.0