diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index cf0bdb7..25236f9 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -13,6 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           manylinux: auto
@@ -30,6 +34,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           target: aarch64-unknown-linux-gnu
@@ -47,6 +55,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           target: armv7
@@ -64,6 +76,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           target: x86_64
@@ -81,6 +97,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           target: aarch64
@@ -98,6 +118,10 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           command: build
@@ -113,6 +137,10 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
       - uses: messense/maturin-action@v1
         with:
           command: build
diff --git a/.github/workflows/Test.yml b/.github/workflows/Test.yml
index 9e2c6fa..2452544 100644
--- a/.github/workflows/Test.yml
+++ b/.github/workflows/Test.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.11", "3.12"]
         os: [ubuntu-latest, windows-latest, macos-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 085ff09..594ffc1 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-citiespy==0.4.0
+citiespy==0.5.0
 maturin==1.2.3
 pytest
 pytest-benchmark