diff --git a/pyproject.toml b/pyproject.toml
index 1dca207..dcf3c96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name            = "sympde"
-version         = "0.18.3"
+version         = "0.18.4"
 description     = "Symbolic calculus for partial differential equations (and variational forms)"
 readme          = "README.rst"
 requires-python = ">= 3.8, < 3.13"