diff --git a/pyproject.toml b/pyproject.toml
index ede9def9..1137a493 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ dependencies = [
     'sympy',
     'textdistance',
     'z3-solver >= 4',
-    'zstandard==0.15.2',
+    'zstandard==0.23.0',
     'zss'
 ]