diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index a694eb4..d0aa2c3 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -45,7 +45,7 @@ jobs:
         # If this workflow is called to build for release, build using
         # only one Python version, which is the lowest ABI version set
         # in PyO3 features.
-        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.12"]') }}
+        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.13"]') }}
     env:
       DISPLAY: :0
     steps:
@@ -88,7 +88,7 @@ jobs:
         # If this workflow is called to build for release, build using
         # only one Python version, which is the lowest ABI version set
         # in PyO3 features.
-        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.12"]') }}
+        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.13"]') }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
@@ -127,7 +127,7 @@ jobs:
         # If this workflow is called to build for release, build using
         # only one Python version, which is the lowest ABI version set
         # in PyO3 features.
-        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.12"]') }}
+        py: ${{ inputs.release && fromJSON('["3.8"]') || fromJSON('["3.8", "3.13"]') }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
diff --git a/pyproject.toml b/pyproject.toml
index 85410b9..c9f0986 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 dynamic = ["version"]
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a014b15..6019b27 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,4 @@
-pillow==10.3.0
+pillow==11.0.0 ; python_version >= "3.13"
+pillow==10.4.0 ; python_version >= "3.8" and python_version < "3.13"
 pytest==8.0.0
 pytest-repeat==0.9.3