diff --git a/.github/workflows/validate_json.yml b/.github/workflows/validate_json.yml
index b16eea5..c259ddd 100644
--- a/.github/workflows/validate_json.yml
+++ b/.github/workflows/validate_json.yml
@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [3.6]
+        python-version: ["3.10"]
 
     steps:
     - name: Checkout repository
diff --git a/src/simple_validator.py b/src/simple_validator.py
index 915a4c5..6c19ce5 100755
--- a/src/simple_validator.py
+++ b/src/simple_validator.py
@@ -23,7 +23,7 @@ def test_jschema(validator, test_pattern):
 
 f = open(sys.argv[1], 'r')
 
-spec = yaml.load(f.read())
+spec = yaml.safe_load(f.read())
 
 v = Draft4Validator(spec)