diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6f72894f..7fa808a77 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # PyNWB Changelog
 
-## PyNWB 2.4.0 (Upcoming)
+## PyNWB 2.4.0 (July 23, 2023)
 
 ### Enhancements and minor changes
 - Add support for `ExternalResources`. @mavaylon1 [#1684](https://github.com/NeurodataWithoutBorders/pynwb/pull/1684)
@@ -10,8 +10,8 @@
 - Fixed sphinx-gallery setting to correctly display index in the docs with sphinx-gallery>=0.11. @oruebel [#1733](https://github.com/NeurodataWithoutBorders/pynwb/pull/1733)
 
 ### Documentation and tutorial enhancements
-- Added thumbnail for Optogentics tutorial @oruebel [#1729](https://github.com/NeurodataWithoutBorders/pynwb/pull/1729)
-
+- Added thumbnail for Optogentics tutorial. @oruebel [#1729](https://github.com/NeurodataWithoutBorders/pynwb/pull/1729)
+- Update and fix errors in tutorials. @bendichter @oruebel
 
 ## PyNWB 2.3.3 (June 26, 2023)
 
diff --git a/requirements-min.txt b/requirements-min.txt
index 52f891905..662133bd5 100644
--- a/requirements-min.txt
+++ b/requirements-min.txt
@@ -1,6 +1,6 @@
 # minimum versions of package dependencies for installing PyNWB
 h5py==2.10  # support for selection of datasets with list of indices added in 2.10
-hdmf==3.7.0
+hdmf==3.8.0
 numpy==1.18
 pandas==1.1.5
 python-dateutil==2.7.3
diff --git a/requirements.txt b/requirements.txt
index 7313addc4..4c0cf18fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # pinned dependencies to reproduce an entire development environment to use PyNWB
 h5py==3.8.0
-hdmf==3.7.0
+hdmf==3.8.0
 numpy==1.24.2
 pandas==2.0.0
 python-dateutil==2.8.2
diff --git a/setup.py b/setup.py
index 46334a20d..8a5010d6d 100755
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
 
 reqs = [
     'h5py>=2.10',
-    'hdmf>=3.7.0',
+    'hdmf>=3.8.0',
     'numpy>=1.16',
     'pandas>=1.1.5',
     'python-dateutil>=2.7.3',