diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc80eb89..a8e62fba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+0.22.26
+=======
+
+* Update expat to 2.8.4
+
+
 0.22.25
 =======
 
diff --git a/relenv/common.py b/relenv/common.py
index 645ab510..87ddee34 100644
--- a/relenv/common.py
+++ b/relenv/common.py
@@ -27,7 +27,7 @@
     from collections.abc import Callable, Iterable, Mapping
 
 # relenv package version
-__version__ = "0.22.25"
+__version__ = "0.22.26"
 
 log = logging.getLogger(__name__)
 
diff --git a/relenv/python-versions.json b/relenv/python-versions.json
index 2ba322e3..1af410f4 100644
--- a/relenv/python-versions.json
+++ b/relenv/python-versions.json
@@ -627,6 +627,15 @@
      "darwin",
      "win32"
     ]
+   },
+   "2.8.4": {
+    "url": "https://github.com/libexpat/libexpat/releases/download/R_2_8_4/expat-{version}.tar.xz",
+    "sha256": "656ae1cc8da3b4ea513bb4e254f33e6243938084c0ec6239da873376b09985a7",
+    "platforms": [
+     "linux",
+     "darwin",
+     "win32"
+    ]
    }
   }
  }