diff --git a/CHANGES.txt b/CHANGES.txt
index 8d0f0a8b1..5c3b38466 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -3,8 +3,8 @@ Changes
 
 All issue numbers are relative to https://github.com/Toblerity/Fiona/issues.
 
-1.9.1 (TBD)
------------
+1.9.1 (2023-02-09)
+------------------
 
 - Log a warning message when identically named fields are encountered (#1201).
 - Avoid dependence on listdir order in tests (#1193).
diff --git a/fiona/__init__.py b/fiona/__init__.py
index 87df6930f..a68d30ca7 100644
--- a/fiona/__init__.py
+++ b/fiona/__init__.py
@@ -125,7 +125,7 @@ class Path:
     "prop_type",
     "prop_width",
 ]
-__version__ = "1.9.1dev"
+__version__ = "1.9.1"
 __gdal_version__ = get_gdal_release_name()
 
 gdal_version = get_gdal_version_tuple()