diff --git a/infra/main.bicep b/infra/main.bicep
index 4b67bc5..f065290 100644
--- a/infra/main.bicep
+++ b/infra/main.bicep
@@ -114,7 +114,7 @@ module openAiRoleUser 'core/security/role.bicep' = {
   params: {
     principalId: principalId
     roleDefinitionId: '5e0bd9bd-7b93-4f28-af87-19fc36ad61bd'
-    principalType: 'User'
+    principalType: 'ServicePrincipal'
   }
 }