diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f440d15..7761a34 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
         os: [ubuntu-latest]
         experimental: [true]
         include:
diff --git a/pyproject.toml b/pyproject.toml
index f982314..104544c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
   "Programming Language :: Python :: 3",
   "Topic :: Scientific/Engineering :: Atmospheric Science"
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dynamic = ["readme", "version"]
 dependencies = ["python-dateutil", "numpy", "xarray", "hatanaka", "ncompress"]