diff --git a/CHANGELOG.md b/CHANGELOG.md
index c705b9ea..498b7107 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 Jupytext ChangeLog
 ==================
 
+1.16.4 (2024-07-12)
+-------------------
+
+**Fixed**
+- We use `asyncio.iscoroutinefunction` to determine whether the current contents manager is sync or async ([#1260](https://github.com/mwouts/jupytext/issues/1260))
+
+
 1.16.3 (2024-07-09)
 -------------------
 
diff --git a/src/jupytext/version.py b/src/jupytext/version.py
index 9855819d..1887a67d 100644
--- a/src/jupytext/version.py
+++ b/src/jupytext/version.py
@@ -1,3 +1,3 @@
 """Jupytext's version number"""
 
-__version__ = "1.16.3"
+__version__ = "1.16.4"