diff --git a/pyproject.toml b/pyproject.toml
index 0060b856..d9a42327 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@
 
 [tool.poetry]
     name = "royalnet"
-    version = "5.2"
+    version = "5.2.1"
     description = "A multipurpose bot and web framework"
     authors = ["Stefano Pigozzi <ste.pigozzi@gmail.com>"]
     license = "AGPL-3.0+"
diff --git a/royalnet/backpack/tables/matrix.py b/royalnet/backpack/tables/matrix.py
index 3f66eaa9..b1c11d61 100644
--- a/royalnet/backpack/tables/matrix.py
+++ b/royalnet/backpack/tables/matrix.py
@@ -15,7 +15,7 @@ class Matrix:
 
     @declared_attr
     def user(self):
-        return relationship("User", backref="telegram")
+        return relationship("User", backref="matrix")
 
     @declared_attr
     def matrix_id(self):
diff --git a/royalnet/version.py b/royalnet/version.py
index 89550946..c45e457a 100644
--- a/royalnet/version.py
+++ b/royalnet/version.py
@@ -1 +1 @@
-semantic = "5.2"
+semantic = "5.2.1"