diff --git a/crud.py b/crud.py
index b41e71c..ee50849 100644
--- a/crud.py
+++ b/crud.py
@@ -280,8 +280,9 @@ async def set_config_nwc(key: str, value: str):
 
     await db.execute(
         """
-        INSERT OR REPLACE INTO nwcprovider.config (key, value)
+        INSERT INTO nwcprovider.config (key, value)
         VALUES (:key, :value)
+        ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;
         """,
         {"key": key, "value": value},
     )
diff --git a/migrations.py b/migrations.py
index 6046c3c..fd12650 100644
--- a/migrations.py
+++ b/migrations.py
@@ -68,15 +68,15 @@ async def m003_default_config(db):
     """
     await db.execute(
         """
-        INSERT OR REPLACE INTO nwcprovider.config
-        (key, value) VALUES ('relay', 'nostrclient');
+        INSERT INTO nwcprovider.config (key, value) VALUES ('relay', 'nostrclient')
+        ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;
         """
     )
     new_private_key = bytes.hex(secp256k1._gen_private_key())
     await db.execute(
         """
-        INSERT OR REPLACE INTO nwcprovider.config
-        (key, value) VALUES ('provider_key', :provider_key);
+        INSERT INTO nwcprovider.config (key, value) VALUES ('provider_key', :provider_key)
+        ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;
         """,
         {"provider_key": new_private_key},
     )
@@ -86,15 +86,13 @@ async def m004_default_config2(db):
     """
     Default config
     """
-
     await db.execute(
-        """
-        INSERT OR REPLACE INTO nwcprovider.config
-        (key, value) VALUES ('relay_alias', :value);
+       """
+        INSERT INTO nwcprovider.config (key, value) VALUES ('relay_alias', :value)
+        ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;
         """,
-        {"value": ""},
-    )
-
+       {"value": ""},
+   )
 
 async def m005_key_last_used(db):
     """
@@ -111,11 +109,10 @@ async def m006_default_config3(db):
     """
     Default config
     """
-
     await db.execute(
         """
-        INSERT OR REPLACE INTO nwcprovider.config
-        (key, value) VALUES ('handle_missed_events', :value);
+        INSERT INTO nwcprovider.config (key, value) VALUES ('handle_missed_events', :value)
+        ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;
         """,
         {"value": "0"},
     )