diff --git a/CHANGELOG.md b/CHANGELOG.md
index d58ff48..0c1a66a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Notable Changes in openslide-bin
 
+## Version 4.0.0.4, 2024-09-01
+
+* Update many dependencies
+
+
 ## Version 4.0.0.3, 2024-05-04
 
 * Remove OpenSlide Java, which no longer has a platform-dependent component
diff --git a/common/meson.py b/common/meson.py
index 7c9fe04..6038b32 100644
--- a/common/meson.py
+++ b/common/meson.py
@@ -34,7 +34,7 @@
 # A.B.C = OpenSlide version
 # D = ordinal of the openslide-bin release with this A.B.C, starting from 1
 # Update the version when releasing openslide-bin.
-_PROJECT_VERSION = '4.0.0.3'
+_PROJECT_VERSION = '4.0.0.4'
 
 
 def meson_source_root() -> Path: