diff --git a/dev-requirements.txt b/dev-requirements.txt
index 828ef8aa..59bd44c8 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -14,7 +14,7 @@ Flask>=1.1
 # needed for auto fix
 ruff===0.14.1
 # needed for dapr-ext-workflow
-durabletask-dapr >= 0.2.0a9
+durabletask-dapr >= 0.2.0a15
 # needed for .env file loading in examples
 python-dotenv>=1.0.0
 # needed for enhanced schema generation from function features
diff --git a/ext/dapr-ext-workflow/dapr/ext/workflow/dapr_workflow_client.py b/ext/dapr-ext-workflow/dapr/ext/workflow/dapr_workflow_client.py
index 461bfd43..36a731c4 100644
--- a/ext/dapr-ext-workflow/dapr/ext/workflow/dapr_workflow_client.py
+++ b/ext/dapr-ext-workflow/dapr/ext/workflow/dapr_workflow_client.py
@@ -277,3 +277,7 @@ def purge_workflow(self, instance_id: str, recursive: bool = True):
             recursive: The optional flag to also purge data from all child workflows.
         """
         return self.__obj.purge_orchestration(instance_id, recursive)
+
+    def close(self):
+        """Closes the gRPC connection used by the client."""
+        return self.__obj.close()
diff --git a/ext/dapr-ext-workflow/setup.cfg b/ext/dapr-ext-workflow/setup.cfg
index 18d34258..d46c1185 100644
--- a/ext/dapr-ext-workflow/setup.cfg
+++ b/ext/dapr-ext-workflow/setup.cfg
@@ -25,7 +25,7 @@ packages = find_namespace:
 include_package_data = True
 install_requires =
     dapr >= 1.17.0rc1
-    durabletask-dapr >= 0.2.0a12
+    durabletask-dapr >= 0.2.0a15
 
 [options.packages.find]
 include =