diff --git a/.github/workflows/windows-validation.yml b/.github/workflows/windows-validation.yml
index ed05b0d..65d06f0 100644
--- a/.github/workflows/windows-validation.yml
+++ b/.github/workflows/windows-validation.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         cache: [false, true]
-        go: [1.20.1]
+        go: [1.21.0]
     steps:
       - uses: actions/checkout@v4
 
diff --git a/README.md b/README.md
index 74cd6ee..84f04ab 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Matching by [semver spec](https://github.com/npm/node-semver):
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '^1.13.1' # The Go version to download (if necessary) and use.
@@ -51,7 +51,7 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '>=1.17.0'
@@ -59,17 +59,17 @@ steps:
 ```
 
 > **Note**: Due to the peculiarities of YAML parsing, it is recommended to wrap the version in single quotation marks:
->
+> 
 > ```yaml
->   go-version: '1.20'
+>   go-version: '1.21'
 >  ```
->
-> The recommendation is based on the YAML parser's behavior, which interprets non-wrapped values as numbers and, in the case of version 1.20, trims it down to 1.2, which may not be very obvious.
+>  
+> The recommendation is based on the YAML parser's behavior, which interprets non-wrapped values as numbers and, in the case of version 1.21, trims it down to 1.2, which may not be very obvious.
 Matching an unstable pre-release:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '1.18.0-rc.1' # The Go version to download (if necessary) and use.
@@ -78,7 +78,7 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '1.16.0-beta.1' # The Go version to download (if necessary) and use.
@@ -93,7 +93,7 @@ See [action.yml](action.yml)
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '1.16.1' # The Go version to download (if necessary) and use.
@@ -114,7 +114,7 @@ want the most up-to-date Go version to always be used.
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '1.14'
@@ -135,7 +135,7 @@ set to `true`
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: 'stable'
@@ -144,7 +144,7 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: 'oldstable'
@@ -161,20 +161,20 @@ The action defaults to search for the dependency file - go.sum in the repository
 the cache key. Use `cache-dependency-path` input for cases when multiple dependency files are used, or they are located
 in different subdirectories. The input supports glob patterns.
 
-If some problem that prevents success caching happens then the action issues the warning in the log and continues the execution of the pipeline.
+If some problem that prevents success caching happens then the action issues the warning in the log and continues the execution of the pipeline. 
 
 **Caching in monorepos**
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version: '1.17'
       check-latest: true
       cache-dependency-path: |
-             subdir/go.sum
-             tools/go.sum
+             subdir/go.sum 
+             tools/go.sum   
     # cache-dependency-path: "**/*.sum"
 
   - run: go run hello.go
@@ -193,7 +193,7 @@ If both the `go-version` and the `go-version-file` inputs are provided then the
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
+  - uses: actions/checkout@v3
   - uses: actions/setup-go@v4
     with:
       go-version-file: 'path/to/go.mod'
@@ -211,7 +211,7 @@ jobs:
         go: [ '1.14', '1.13' ]
     name: Go ${{ matrix.go }} sample
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
       - name: Setup go
         uses: actions/setup-go@v4
         with: