diff --git a/CHANGELOG.md b/CHANGELOG.md
index e795461..480d8d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 
+## [0.5.1] - 2025-04-10
+
+### Fixed
+
+- Added 'present' to noValueOperators in Test-IDNWFilter ([#40](https://github.com/EUCTechTopics/PSIdentityNow/pull/40))
+
+[0.5.1]: https://github.com/EUCTechTopics/PSIdentityNow/releases/tag/v0.5.1
+
 ## [0.5.0] - 2025-03-12
 
 ### Changed
diff --git a/PSIdentityNow/PSIdentityNow.psd1 b/PSIdentityNow/PSIdentityNow.psd1
index 924b115..f02e9c9 100644
--- a/PSIdentityNow/PSIdentityNow.psd1
+++ b/PSIdentityNow/PSIdentityNow.psd1
@@ -12,7 +12,7 @@
     RootModule = 'PSIdentityNow.psm1'
 
     # Version number of this module.
-    ModuleVersion = '0.5.0'
+    ModuleVersion = '0.5.1'
 
     # Supported PSEditions
     CompatiblePSEditions = 'Core'
diff --git a/PSIdentityNow/Private/Test-IDNWFilter.ps1 b/PSIdentityNow/Private/Test-IDNWFilter.ps1
index f5e2d29..2710d5b 100644
--- a/PSIdentityNow/Private/Test-IDNWFilter.ps1
+++ b/PSIdentityNow/Private/Test-IDNWFilter.ps1
@@ -29,7 +29,7 @@ function Test-IDNWFilter {
         $operator = $Filter['operator'].ToLower()
 
         # Operators that don't require a 'value'
-        $noValueOperators = @('pr', 'isnull')
+        $noValueOperators = @('pr', 'present', 'isnull')
 
         if ($operator -in $noValueOperators) {
             if ($Filter.ContainsKey('value') -and $null -ne $Filter['value']) {