diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 5ae2a269..c9f9ae8a 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -336,7 +336,7 @@ steps:
     filePath: azure-pipelines/update-dependencies.ps1
   env:
     MY_GITHUB_TOKEN: $(GitHubToken)
-  condition: or( and( succeeded(), contains(variables['Build.SourceVersionMessage'], '***UPDATE_DEPENDENTS***') ), eq(variables['UPDATE_DEPENDENTS'], 'true') )
+  condition: and( succeeded(), ne(variables['system.pullrequest.isfork'], true), or( contains(variables['Build.SourceVersionMessage'], '***UPDATE_DEPENDENTS***') ), eq(variables['UPDATE_DEPENDENTS'], 'true') )
   displayName: Update dependent tools
 
 # create or update GitHub release