diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 95d5f23e..876ba7b6 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -14,7 +14,7 @@ env:
   NETCORE_VERSION: '5.0.101'
   NUGET_SOURCE: 'https://api.nuget.org/v3/index.json'
   PROJECT_CONFIGURATION: Release
-
+  PROJECT_PATH: ./src/PhoneNumbers/PhoneNumbers.csproj
 
 jobs:
   build:
@@ -39,3 +39,18 @@ jobs:
 
     - name: dotnet test
       run: dotnet test --no-restore --verbosity normal
+
+    - name: dotnet pack (pre-release)
+      if: matrix.os == 'ubuntu-latest' && github.event_name == 'push' && github.ref == 'refs/heads/develop'
+      run: |
+        $date = Get-Date -Format "yyyyMMdd"
+        $projVersion = ([xml](Get-Content ${{ env.PROJECT_PATH }})) | Select-Xml -XPath "//Project/PropertyGroup[1]/Version"
+        dotnet pack --no-build --configuration ${{ env.PROJECT_CONFIGURATION }} -p:PackageVersion="$projVersion-preview$date.${{ github.run_id }}"
+      shell: pwsh
+
+    - name: dotnet pack
+      if: matrix.os == 'ubuntu-latest' && github.event_name == 'push' && github.ref == 'refs/heads/main'
+      run: |
+        $projVersion = ([xml](Get-Content ${{ env.PROJECT_PATH }})) | Select-Xml -XPath "//Project/PropertyGroup[1]/Version"
+        dotnet pack --no-build --configuration ${{ env.PROJECT_CONFIGURATION }} -p:PackageVersion="$projVersion"
+      shell: pwsh