diff --git a/pyproject.toml b/pyproject.toml
index 0af8435..5180f46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -116,7 +116,7 @@ parentdir_prefix = "gwemopt-"
 addopts = "--verbose -r s"
 
 [tool.bumpver]
-current_version = "0.3.3"
+current_version = "0.3.4"
 version_pattern = "MAJOR.MINOR.PATCH[PYTAGNUM]"
 commit_message = "bump version {old_version} -> {new_version}"
 commit = true