diff --git a/src/functions/public/Commands/Set-GitHubOutput.ps1 b/src/functions/public/Commands/Set-GitHubOutput.ps1
index 47bac71b..f2a4b5f4 100644
--- a/src/functions/public/Commands/Set-GitHubOutput.ps1
+++ b/src/functions/public/Commands/Set-GitHubOutput.ps1
@@ -60,6 +60,10 @@
             default {}
         }
 
+        if ($Value -isnot [string]) {
+            $Value = $Value | ConvertTo-Json -Compress -Depth 100
+        }
+
         Write-Verbose "Output: [$Name] = [$Value]"
 
         # If the script is running in a GitHub composite action, accumulate the output under the 'result' key,