1 files changed, 4 insertions, 4 deletions
diff --git a/synapse/secrets.py b/synapse/secrets.py
index fb6d90a3b7..7939db75e7 100644
--- a/synapse/secrets.py
+++ b/synapse/secrets.py
@@ -26,10 +26,10 @@ if sys.version_info[0:2] >= (3, 6):
     import secrets
 
     class Secrets:
-        def token_bytes(self, nbytes=32):
+        def token_bytes(self, nbytes: int = 32) -> bytes:
             return secrets.token_bytes(nbytes)
 
-        def token_hex(self, nbytes=32):
+        def token_hex(self, nbytes: int = 32) -> str:
             return secrets.token_hex(nbytes)
 
 
@@ -38,8 +38,8 @@ else:
     import os
 
     class Secrets:
-        def token_bytes(self, nbytes=32):
+        def token_bytes(self, nbytes: int = 32) -> bytes:
             return os.urandom(nbytes)
 
-        def token_hex(self, nbytes=32):
+        def token_hex(self, nbytes: int = 32) -> str:
             return binascii.hexlify(self.token_bytes(nbytes)).decode("ascii")