diff --git a/CHANGELOG b/CHANGELOG
index a3d34a2..63098be 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2024-02-06 Release 2.2.1:
+	- require libhxl==5.2.1:
+	  - make logup log level configurable via environment variable
 2024-01-18 Release 2.2:
     - fix pcodes urls
 	- require libhxl==5.2:
diff --git a/hxl_proxy/__init__.py b/hxl_proxy/__init__.py
index e952d4f..dfd1290 100644
--- a/hxl_proxy/__init__.py
+++ b/hxl_proxy/__init__.py
@@ -8,7 +8,7 @@
 
 """
 
-__version__="2.2"
+__version__="2.2.1"
 """Module version number
 See https://www.python.org/dev/peps/pep-0396/
 
diff --git a/requirements.txt b/requirements.txt
index bad0f64..3b2dfda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ requests_cache
 ckanapi>=3.5
 flask>=2.2.5<2.3      # 2.3 messes up pip dependencies
 #git+https://github.com/HXLStandard/libhxl-python.git@dev#egg=libhxl # for development
-libhxl==5.2         # for release
+libhxl==5.2.1         # for release
 flask-caching
 redis
 requests
diff --git a/setup.cfg b/setup.cfg
index 873337b..1c41dfa 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -26,7 +26,7 @@ install_requires =
     ckanapi>=3.5
     flask>=2.2.5<2.3     # 2.3 messes up pip dependencies
     #libhxl @ git+https://github.com/HXLStandard/libhxl-python.git@dev # for development
-    libhxl==5.2        # for release
+    libhxl==5.2.1        # for release
     flask-caching
     redis
     structlog