diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 52874cd..9fc7ead 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,6 +4,7 @@ on:
     branches:
       - master
   pull_request:
+  workflow_dispatch:
   schedule:
     - cron: 0 0 * * *
 
@@ -18,10 +19,10 @@ jobs:
     - name: setup-xamarin
       uses: ./
       with:
-        mono-version: 6.6
-        xamarin-ios-version: 14.0
-        xamarin-mac-version: 6.6
-        xamarin-android-version: 10.1
+        mono-version: '6.6'
+        xamarin-ios-version: '14.0'
+        xamarin-mac-version: '6.6'
+        xamarin-android-version: '10.1'
 
     - name: Validate versions
       run: pwsh ./__tests__/validate-xamarin-versions.ps1 "6.6" "14.0" "6.6" "10.1"
@@ -67,10 +68,10 @@ jobs:
     - name: setup-xamarin
       uses: ./
       with:
-        xcode-version: 11.4
+        xcode-version: 12.3
 
     - name: Validate versions
-      run: pwsh ./__tests__/validate-xcode-version.ps1 -XcodeVersion "11.4"
+      run: pwsh ./__tests__/validate-xcode-version.ps1 -XcodeVersion "12.3"
 
   xcode-wildcard-version:
     name: xcode - wildcard version
diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 4b4bbb3..7ce3f21 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -4,6 +4,7 @@ on:
     branches:
       - master
   pull_request:
+  workflow_dispatch:
   schedule:
     - cron: 0 0 * * *
 
diff --git a/README.md b/README.md
index d4801e0..b60d0b9 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ This action is intended to switch between pre-installed versions of Xamarin and
 
 - `mono-version`, `xamarin-ios-version`, `xamarin-mac-version`, `xamarin-android-version` parameters support the following format: `latest`, `13`, `13.2`, `13.2.1.4`  
 - `xcode-version` parameter supports the following format: `latest`, `11.4`, `11.x`, `11.2.1`  
+**Note:** If you need to switch Xcode only without Xamarin - please consider using [maxim-lobanov/setup-xcode](https://github.com/maxim-lobanov/setup-xcode) actions since it provides more comfortable way to specify Xcode.
 
 # Usage
 ```
@@ -25,11 +26,11 @@ jobs:
     - name: setup-xamarin
       uses: maxim-lobanov/setup-xamarin@v1
       with:
-        mono-version: 6.6 # specify version in '<major>.<minor>' format
-        xamarin-ios-version: 13 # specify version in '<major>' format
+        mono-version: '6.6' # specify version in '<major>.<minor>' format
+        xamarin-ios-version: '13' # specify version in '<major>' format
         xamarin-mac-version: latest # specify 'latest' keyword to pick up the latest available version
-        xamarin-android-version: 10.1.3.7 # specify full version; it is not recomended option because your pipeline can be broken suddenly in future
-        xcode-version: 11.x # set the latest available Xcode 11
+        xamarin-android-version: '10.1.3.7' # specify full version; it is not recomended option because your pipeline can be broken suddenly in future
+        xcode-version: '11.x' # set the latest available Xcode 11
 ```
 
 # License