diff --git a/src/sakia/data/repositories/identities.py b/src/sakia/data/repositories/identities.py
index 8b5783d786e8a6e961a4c662f1ce00464559fed6..c766a21c76b2a9c1fc051eab3698716053b26c76 100644
--- a/src/sakia/data/repositories/identities.py
+++ b/src/sakia/data/repositories/identities.py
@@ -2,7 +2,7 @@ import attr
 from ..entities import Identity
 
 
-@attr.s
+@attr.s(frozen=True)
 class IdentitiesRepo:
     """The repository for Identities entities.
     """
diff --git a/src/sakia/data/repositories/meta.py b/src/sakia/data/repositories/meta.py
index 7e66478220bfdcc5a4aaa0d3c7365b388c8d2cac..fd5ff42b3506b6d83b898068a0bf558f0f802d85 100644
--- a/src/sakia/data/repositories/meta.py
+++ b/src/sakia/data/repositories/meta.py
@@ -1,5 +1,4 @@
 import attr
-from ..entities import Identity
 
 
 @attr.s(frozen=True)