diff --git a/jsc_custom/_version.py b/jsc_custom/_version.py
index 54adfced92fe74ea05834ce35bd16414b82594a9..c56a39966fc38e3a0f6b96629fc0c8f986bc1a2c 100644
--- a/jsc_custom/_version.py
+++ b/jsc_custom/_version.py
@@ -1,4 +1,4 @@
 # __version__ should be updated using tbump, based on configuration in
 # pyproject.toml, according to instructions in RELEASE.md.
 #
-__version__ = "0.12.14"
+__version__ = "0.12.15"
diff --git a/pyproject.toml b/pyproject.toml
index 7531f712cbf3afb0bed6d023d074e33571b009a0..911c97fc086b973814de9ed308860878cdce05d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ profile = "black"
 github_url = "https://github.com/kreuzert/jupyter-jsc-custom"
 
 [tool.tbump.version]
-current = "0.12.14"
+current = "0.12.15"
 regex = '''
   (?P<major>\d+)
   \.