diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2507a06..d9fe5a6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.10", "3.11"]
+        python: ["3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/requirements.txt b/requirements.txt
index 60b4640..26fbe24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-pyyaml==6.0
+pyyaml==6.0.1
 mergedeep==1.3.4
diff --git a/setup.py b/setup.py
index 778f86c..9694947 100644
--- a/setup.py
+++ b/setup.py
@@ -38,6 +38,7 @@
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
     ],
diff --git a/tox.ini b/tox.ini
index ea4f4b7..6414862 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py310,py311
+envlist = py310,py311,py312
 
 [testenv]
 extras = test