diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index df0bc1f..9fa02d6 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.9", "3.10", "3.11"]
+        python: ["3.9", "3.10", "3.11", "3.12"]
         CARBONPLAN_DATA: [
             # 'https://carbonplan.blob.core.windows.net/carbonplan-data',
             "gs://carbonplan-data",
diff --git a/pyproject.toml b/pyproject.toml
index 4aefd07..98d2570 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,6 +18,8 @@ classifiers = [
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Topic :: Scientific/Engineering",
 ]
 dynamic = ["version"]