diff --git a/.tool-versions b/.tool-versions
index d8da9d2..9c419a3 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-python 3.13
-poetry 2.1.4
+python 3.15.1
+poetry 2.5.1
diff --git a/Dockerfile b/Dockerfile
index 02dd132..90fdfe6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN pip install --isolated --no-cache-dir --no-input poetry \
     && poetry config virtualenvs.create false \
     && poetry install --no-interaction --without=dev
 
-FROM public.ecr.aws/lambda/python:3.13 AS python-run-stage
+FROM public.ecr.aws/lambda/python:3.14 AS python-run-stage
 
 COPY --from=python-build-stage /usr/local/lib/python3.13/site-packages /usr/local/lib/python3.13/site-packages
 ENV PYTHONPATH=/usr/local/lib/python3.13/site-packages
diff --git a/pyproject.toml b/pyproject.toml
index 6feeba2..d1e130b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ readme = "README.md"
 package-mode = false
 
 [tool.poetry.dependencies]
-python = "~3.13.0"
+python = "~3.15.0"
 slackclient = "^2.9.4"
 black = "^23.3.0"