diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 6934049b..8d3532b1 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -18,7 +18,6 @@ jobs:
         # https://github.com/actions/python-versions/blob/main/versions-manifest.json
         # https://devguide.python.org/versions/#supported-versions
         python-version:
-        - "3.9"
         - "3.10"
         - "3.11"
         - "3.12"
diff --git a/poetry.lock b/poetry.lock
index 68deef13..9f979f74 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -238,7 +238,7 @@ description = "Backport of PEP 654 (exception groups)"
 optional = false
 python-versions = ">=3.7"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "exceptiongroup-1.2.2-py3-none-any.whl", hash = "sha256:3111b9d131c238bec2f8f516e123e14ba243563fb135d3fe885990585aa7795b"},
     {file = "exceptiongroup-1.2.2.tar.gz", hash = "sha256:47c2edf7c6738fafb49fd34290706d1a1a2f4d1c6df275526b62cbb4aa5393cc"},
@@ -437,7 +437,6 @@ mccabe = ">=0.6,<0.8"
 platformdirs = ">=2.2"
 tomli = {version = ">=1.1", markers = "python_version < \"3.11\""}
 tomlkit = ">=0.10.1"
-typing-extensions = {version = ">=3.10", markers = "python_version < \"3.10\""}
 
 [package.extras]
 spelling = ["pyenchant (>=3.2,<4.0)"]
@@ -525,7 +524,7 @@ description = "A lil' TOML parser"
 optional = false
 python-versions = ">=3.8"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "tomli-2.2.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249"},
     {file = "tomli-2.2.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6"},
@@ -580,7 +579,7 @@ description = "Backported and Experimental Type Hints for Python 3.8+"
 optional = false
 python-versions = ">=3.8"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "typing_extensions-4.13.2-py3-none-any.whl", hash = "sha256:a439e7c04b49fec3e5d3e2beaa21755cadbbdc391694e28ccdd36ca4a1408f8c"},
     {file = "typing_extensions-4.13.2.tar.gz", hash = "sha256:e6c81219bd689f51865d9e372991c540bda33a0379d5573cddb9a3a23f7caaef"},
@@ -588,5 +587,5 @@ files = [
 
 [metadata]
 lock-version = "2.1"
-python-versions = "^3.9"
-content-hash = "a3b03e5ce374751da5997aa94c3fa886bbd7469e91c0106f3b979a1bde5c1fd8"
+python-versions = "^3.10"
+content-hash = "c7f4a0b3d63f1587dc985675f8f062b34b4574d9e28b00110a5164cc61f77135"
diff --git a/pyproject.toml b/pyproject.toml
index d3e7f80f..cea37326 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = "^3.10"
 sqlparse = ">=0.4.1,<0.6.0"
 
 [tool.poetry.dev-dependencies]