diff --git a/CHANGES.md b/CHANGES.md
index 4f752fad6b..814c455757 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,9 @@
+Synapse 1.48.0 (2021-11-30)
+===========================
+
+No significant changes.
+
+
 Synapse 1.48.0rc1 (2021-11-25)
 ==============================
 
diff --git a/debian/changelog b/debian/changelog
index 5e5e211164..7deab5936e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.48.0) stable; urgency=medium
+
+  * New synapse release 1.48.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 30 Nov 2021 11:24:15 +0000
+
 matrix-synapse-py3 (1.48.0~rc1) stable; urgency=medium
 
   * New synapse release 1.48.0~rc1.
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 7b91947228..3cd1ce6070 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -47,7 +47,7 @@ try:
 except ImportError:
     pass
 
-__version__ = "1.48.0rc1"
+__version__ = "1.48.0"
 
 if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
     # We import here so that we don't have to install a bunch of deps when