diff --git a/ARAH/ARAH.psd1 b/ARAH/ARAH.psd1
index 1d881f2..a9cc889 100644
--- a/ARAH/ARAH.psd1
+++ b/ARAH/ARAH.psd1
@@ -3,7 +3,7 @@
 	RootModule        = 'ARAH.psm1'
 
 	# Version number of this module.
-	ModuleVersion     = '1.3.8'
+	ModuleVersion     = '1.5.1'
 
 	# ID used to uniquely identify this module
 	GUID              = '5bf61bed-a3da-4550-949a-a869b8dc29c6'
@@ -26,7 +26,7 @@
 	# Modules that must be imported into the global environment prior to importing
 	# this module
 	RequiredModules   = @(
-		@{ ModuleName = 'PSFramework'; ModuleVersion = '1.6.214' }
+		@{ ModuleName = 'PSFramework'; ModuleVersion = '1.11.343' }
 	)
 
 	# Assemblies that must be loaded prior to importing this module
diff --git a/ARAH/changelog.md b/ARAH/changelog.md
index 74d234d..e36d50a 100644
--- a/ARAH/changelog.md
+++ b/ARAH/changelog.md
@@ -1,13 +1,32 @@
 # Changelog
+
+## 1.5.1 (2025-04-29)
+- Fixed HTTP version from `1.1.0` to `1.1` as PowerShell 7.5 complains otherwise.
+- Headers are now cloned.
+
+## 1.5.0 (2025-04-29)
+- Changed RequestModifier execution.
+- Added ability to add headers to a request.
+- Support for newer HTTP versions added.
+
 ## 1.3.8 (2023-09-08)
- - If the result is JSON you can enable converting it to a HashTable with the `Invoke-ARAHRequest -ConvertJsonAsHashtable` switch. This is needed in case of the error `Cannot convert the JSON string because it contains keys with different casing. Please use the -AsHashTable switch instead.`
- - File Downloads can be handled
+- Depth parameter added to `ConvertTo-Json`.
+- Added parameter help for `OutFile`.
+- If the result is JSON, you can enable converting it to a HashTable with the `Invoke-ARAHRequest -ConvertJsonAsHashtable` switch. This is needed in case of the error `Cannot convert the JSON string because it contains keys with different casing. Please use the -AsHashTable switch instead.`
+- File downloads can now be handled.
+
 ## 1.3.6 (2023-03-03)
- - If using a HashTable object for the `Invoke-ARAHRequest -Body` parameter it is only converted to json if the content type matches `json`.
+- If using a HashTable object for the `Invoke-ARAHRequest -Body` parameter, it is only converted to JSON if the content type matches `json`.
+
 ## 1.3.5 (2023-01-18)
- - Added Parameter/Property SkipCheck to the ARAHConnection class and to Invoke-ARAHRequest  
-   Allows e.g. to skip SSL checks while performing the HTTP requests
+- Added `SkipCheck` parameter/property to the `ARAHConnection` class and `Invoke-ARAHRequest`. This allows skipping SSL checks while performing HTTP requests.
+
+## 1.3.4
+- Added configurable depth for `ConvertTo-Json` calls.
+- Added `-WarningAction SilentlyContinue` to all `ConvertTo-Json` calls.
+
 ## 1.1.0 (2021-02-26)
- - New: automatic generation of functions based on swagger specs
+- New: Automatic generation of functions based on Swagger specs.
+
 ## 1.0.0 (2021-02-22)
- - New: Module
\ No newline at end of file
+- Initial release of the module.
\ No newline at end of file
diff --git a/ARAH/functions/Invoke-ARAHRequest.ps1 b/ARAH/functions/Invoke-ARAHRequest.ps1
index 38a42f8..e908801 100644
--- a/ARAH/functions/Invoke-ARAHRequest.ps1
+++ b/ARAH/functions/Invoke-ARAHRequest.ps1
@@ -96,6 +96,7 @@
         [string]$RequestModifier,
         [string]$PagingHandler,
         [switch]$ConvertJsonAsHashtable,
+        [hashtable]$Headers,
         [switch]$EnablePaging
     )
     $uri = $connection.webServiceRoot + $path
@@ -110,17 +111,22 @@
     $SkipCheckAndValidation = ($SkipCheck + $Connection.SkipCheck) | Select-Object -Unique
     if ($URLParameter) {
         Write-PSFMessage "Converting UrlParameter to a Request-String and add it to the path" -Level Debug
-        Write-PSFMessage "$($UrlParameter| ConvertTo-Json -WarningAction SilentlyContinue)" -Level Debug
+        Write-PSFMessage "$($UrlParameter| ConvertTo-Json -WarningAction SilentlyContinue -Depth 3)" -Level Debug
         $parameterString = (Get-ARAHEncodedParameterString($URLParameter))
         $uri = $uri + '?' + $parameterString.trim("?")
     }
     $restAPIParameter = @{
         Uri         = $Uri
         method      = $Method
-        Headers     = $connection.headers
+        Headers     = $connection.headers.clone()
         ContentType = $effectiveContentType
         WebSession  = $connection.WebSession
         Credential  = $connection.Credential
+        HttpVersion = $Connection.HttpVersion
+    }
+    if ($Headers){
+        Write-PSFMessage "Adding additional headers: $($Headers|ConvertTo-Json -Compress)"
+        $restAPIParameter.Headers += $Headers
     }
     if ($SkipCheckAndValidation.Count -gt 0) {
         Write-PSFMessage "Skipping the following checks during http request: $($SkipCheckAndValidation|Join-String ',')"
@@ -154,7 +160,7 @@
     try {
         If ($RequestModifier) {
             [PSFScriptBlock]$reqModifierScript = Get-PSFScriptBlock -Name $RequestModifier
-            $reqModifierScript.InvokeEx($false, $true, $true)
+            $reqModifierScript.InvokeEx($false, $true, $false)
         }
         Write-ARAHCallMessage $restAPIParameter
         $response = Invoke-WebRequest @restAPIParameter
diff --git a/ARAH/internal/classes/ARAHConnection.ps1 b/ARAH/internal/classes/ARAHConnection.ps1
index 915f056..a919136 100644
--- a/ARAH/internal/classes/ARAHConnection.ps1
+++ b/ARAH/internal/classes/ARAHConnection.ps1
@@ -5,6 +5,7 @@
     [String]$ServerRoot
     [String]$WebServiceRoot
     [String]$AuthenticatedUser
+    [version]$HttpVersion="1.1"
     hidden[PSCredential]$Credential
     hidden[String]$ContentType
     hidden[Microsoft.PowerShell.Commands.WebRequestSession]$WebSession