diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 3153405..4000fd0 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.12"
 
     - name: Build
       run: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4eadbad..634cf7b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     runs-on: ${{matrix.platform}}
     steps:
     - name: Checkout
diff --git a/pyproject.toml b/pyproject.toml
index 78dbd52..ed8a587 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "dask-histogram"
 description = "Histogramming with Dask."
 readme = "README.md"
 license = {text = "BSD-3-Clause"}
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 authors = [
     { name = "Doug Davis", email = "ddavis@ddavis.io" },
 ]
@@ -16,11 +16,11 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Information Analysis",
     "Topic :: Scientific/Engineering :: Mathematics",
@@ -34,17 +34,7 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 complete = [
-    "dask-sphinx-theme >=3.0.2",
-    "dask[array,dataframe]",
-    "dask-awkward >=2023.10.0",
-    "hist",
-    "pytest",
-    "sphinx >=4.0.0",
-    "sphinxcontrib-applehelp>=1.0.0,<1.0.7",
-    "sphinxcontrib-devhelp>=1.0.0,<1.0.6",
-    "sphinxcontrib-htmlhelp>=2.0.0,<2.0.5",
-    "sphinxcontrib-serializinghtml>=1.1.0,<1.1.10",
-    "sphinxcontrib-qthelp>=1.0.0,<1.0.7",
+    "dask-histogram[docs,test]"
 ]
 docs = [
     "dask-sphinx-theme >=3.0.2",