diff --git a/aries_cloudagent/vc/vc_ld/external_suite.py b/aries_cloudagent/vc/vc_ld/external_suite.py
index 352982ae5c..a78388a196 100644
--- a/aries_cloudagent/vc/vc_ld/external_suite.py
+++ b/aries_cloudagent/vc/vc_ld/external_suite.py
@@ -28,7 +28,7 @@ class ExternalSuiteProvider(ABC):
     """Plugin hook for providing an external signature suite implementation."""
 
     @abstractmethod
-    def get_suite(
+    async def get_suite(
         self,
         profile: Profile,
         proof_type: str,
diff --git a/aries_cloudagent/vc/vc_ld/manager.py b/aries_cloudagent/vc/vc_ld/manager.py
index 5784ef9111..5e670355f2 100644
--- a/aries_cloudagent/vc/vc_ld/manager.py
+++ b/aries_cloudagent/vc/vc_ld/manager.py
@@ -179,15 +179,15 @@ async def _get_suite(
         self,
         *,
         proof_type: str,
-        verification_method: Optional[str] = None,
-        proof: Optional[dict] = None,
-        did_info: Optional[DIDInfo] = None,
+        verification_method: str,
+        proof: dict,
+        did_info: DIDInfo,
     ):
         """Get signature suite for issuance of verification."""
         # Try to get suite from external provider first
         try:
             if (provider := self.profile.inject_or(ExternalSuiteProvider)) and (
-                suite := provider.get_suite(
+                suite := await provider.get_suite(
                     self.profile, proof_type, proof, verification_method, did_info
                 )
             ):