diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2c3cd56..5b257ff 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: ["3.7", "3.8", "3.9"]
+        python-version: ["3.8", "3.9"]
     
     steps:
     - uses: actions/checkout@v2
diff --git a/requirements.txt b/requirements.txt
index eea759f..4e48810 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ suncalc
 keplergl
 scikit-opt
 transbigdata
+mapbox_vector_tile
 vt2geojson
 requests
 tqdm
diff --git a/setup.py b/setup.py
index bbf0df1..0a7e54c 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
         "Bug Tracker": "https://github.com/ni1o1/pybdshadow/issues",
     },
     install_requires=[
-        "numpy", "pandas", "shapely", "geopandas", "matplotlib","suncalc","keplergl","transbigdata","vt2geojson","requests","tqdm","retrying"
+        "numpy", "pandas", "shapely", "geopandas", "matplotlib","suncalc","keplergl","transbigdata","mapbox_vector_tile","vt2geojson","requests","tqdm","retrying"
     ],
     classifiers=[
         "Operating System :: OS Independent",
@@ -26,11 +26,10 @@
         "Topic :: Software Development :: Libraries :: Python Modules",
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
     ],
     package_dir={'pybdshadow': 'src/pybdshadow'},
     packages=['pybdshadow'],
-    python_requires=">=3.6",
+    python_requires=">=3.8",
 )