diff --git a/src/PIL/_version.py b/src/PIL/_version.py
index 62c7dba5570..62708c7df4a 100644
--- a/src/PIL/_version.py
+++ b/src/PIL/_version.py
@@ -1,2 +1,2 @@
 # Master version for Pillow
-__version__ = "9.1.0.dev0"
+__version__ = "9.1.0"