diff --git a/scripts/security/Modules/SecurityClasses.psm1 b/scripts/security/Modules/SecurityClasses.psm1
index 128e99c63..4b6953720 100644
--- a/scripts/security/Modules/SecurityClasses.psm1
+++ b/scripts/security/Modules/SecurityClasses.psm1
@@ -130,7 +130,7 @@ class ComplianceReport {
     [hashtable] ToHashtable() {
         return @{
             ScanPath             = $this.ScanPath
-            Timestamp            = $this.Timestamp.ToString('yyyy-MM-ddTHH:mm:ss.fffZ')
+            Timestamp            = $this.Timestamp.ToUniversalTime().ToString('yyyy-MM-ddTHH:mm:ss.fffffffZ')
             TotalFiles           = $this.TotalFiles
             ScannedFiles         = $this.ScannedFiles
             TotalDependencies    = $this.TotalDependencies
diff --git a/scripts/security/Test-DependencyPinning.ps1 b/scripts/security/Test-DependencyPinning.ps1
index 812f26f15..d4593a7a6 100644
--- a/scripts/security/Test-DependencyPinning.ps1
+++ b/scripts/security/Test-DependencyPinning.ps1
@@ -809,7 +809,7 @@ function Get-ComplianceReportData {
     $report.Metadata = @{
         PowerShellVersion  = $PSVersionTable.PSVersion.ToString()
         Platform           = $PSVersionTable.Platform
-        ScanTimestamp      = $report.Timestamp.ToString('yyyy-MM-ddTHH:mm:ss.fffZ')
+        ScanTimestamp      = $report.Timestamp.ToUniversalTime().ToString('yyyy-MM-ddTHH:mm:ss.fffffffZ')
         IncludedTypes      = $IncludeTypes
         ExcludedPaths      = $ExcludePaths
         RemediationEnabled = $Remediate.IsPresent
diff --git a/scripts/tests/security/SecurityClasses.Tests.ps1 b/scripts/tests/security/SecurityClasses.Tests.ps1
index 0ffd11a1a..79c643011 100644
--- a/scripts/tests/security/SecurityClasses.Tests.ps1
+++ b/scripts/tests/security/SecurityClasses.Tests.ps1
@@ -192,7 +192,7 @@ Describe 'ComplianceReport' -Tag 'Unit' {
         }
 
         It 'Formats Timestamp as ISO 8601 string' {
-            $script:ht['Timestamp'] | Should -Match '^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$'
+            $script:ht['Timestamp'] | Should -Match '^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3,7}Z$'
         }
 
         It 'Preserves numeric values' {