diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index 5bfe94a26..f033297e3 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -10,7 +10,7 @@ on:
   workflow_dispatch:
 
 env:
-  LATEST_SUPPORTED_PY: "3.14"
+  LATEST_SUPPORTED_PY: "3.15"
 
 jobs:
   lint:
@@ -55,6 +55,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
+          - "3.15"
           - "3.14"
           - "3.13"
           - "3.12"
diff --git a/pyproject.toml b/pyproject.toml
index 7695eb67d..8b86c5450 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ classifiers = [
 	"Programming Language :: Python :: 3.12",
 	"Programming Language :: Python :: 3.13",
 	"Programming Language :: Python :: 3.14",
+	"Programming Language :: Python :: 3.15",
 	"Programming Language :: Python :: Implementation :: CPython",
 	"Programming Language :: Python :: Implementation :: PyPy",
 ]
diff --git a/scripts/run_validation.sh b/scripts/run_validation.sh
index 633c40c0b..9ca5a83a0 100755
--- a/scripts/run_validation.sh
+++ b/scripts/run_validation.sh
@@ -6,7 +6,7 @@ script_dir=`dirname $0`
 cd ${script_dir}/..
 
 # keep in sync with LATEST_SUPPORTED_PY in .github/workflows/ci-build.yml
-LATEST_SUPPORTED_PY="3.14"
+LATEST_SUPPORTED_PY="3.15"
 current_py=$(python --version | sed -E 's/Python ([0-9]+\.[0-9]+).*/\1/')
 
 ./scripts/install.sh