diff --git a/pyathena/__init__.py b/pyathena/__init__.py
index 10185efc..07db552c 100644
--- a/pyathena/__init__.py
+++ b/pyathena/__init__.py
@@ -9,7 +9,7 @@
 if TYPE_CHECKING:
     from pyathena.connection import Connection
 
-__version__: str = "3.1.0"
+__version__: str = "3.1.1"
 user_agent_extra: str = f"PyAthena/{__version__}"
 
 # Globals https://www.python.org/dev/peps/pep-0249/#globals
diff --git a/pyproject.toml b/pyproject.toml
index b54743cc..0609499f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "PyAthena"
-version = "3.1.0"  # https://github.com/laughingman7743/PyAthena/blob/master/pyathena/__init__.py#L10
+version = "3.1.1"  # https://github.com/laughingman7743/PyAthena/blob/master/pyathena/__init__.py#L10
 description = "Python DB API 2.0 (PEP 249) client for Amazon Athena"
 license = "MIT"
 classifiers = [