diff --git a/apps/coordinator-api/requirements.txt b/apps/coordinator-api/requirements.txt
index c69a2f3c..c62af9a8 100644
--- a/apps/coordinator-api/requirements.txt
+++ b/apps/coordinator-api/requirements.txt
@@ -14,7 +14,7 @@ aiosqlite>=0.20.0
 sqlmodel>=0.0.16
 numpy>=1.26.0
 tenseal
-concrete-ml
+# concrete-ml  # Optional - requires Python <3.13, currently incompatible
 
 # HTTP & Networking
 httpx>=0.27.0
diff --git a/apps/coordinator-api/src/app/services/fhe_service.py b/apps/coordinator-api/src/app/services/fhe_service.py
index 442e45a4..4f82c7ca 100644
--- a/apps/coordinator-api/src/app/services/fhe_service.py
+++ b/apps/coordinator-api/src/app/services/fhe_service.py
@@ -210,8 +210,10 @@ class FHEService:
         # Optional Concrete ML provider
         try:
             providers["concrete"] = ConcreteMLProvider()
-        except ImportError:
-            logging.warning("Concrete ML not installed; skipping Concrete provider")
+        except ImportError as e:
+            logging.warning("Concrete ML not installed; skipping Concrete provider. "
+                          "Concrete ML requires Python <3.13. Current version: %s", 
+                          __import__('sys').version.split()[0])
 
         self.providers = providers
         self.default_provider = "tenseal"