diff --git a/pyproject.toml b/pyproject.toml
index 813b098cc..f4ce80cd7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dependencies = [
     "feedgenerator>=2.1.0",
     "jinja2>=3.1.2",
     "ordered-set>=4.1.0",
-    "pygments>=2.16.1",
+    "pygments>=2.16.1,<2.19.0",
     "python-dateutil>=2.8.2",
     "rich>=13.6.0",
     "unidecode>=1.3.7",
@@ -88,7 +88,7 @@ dev = [
     "furo==2023.9.10",
     "livereload>=2.6.3",
     "psutil>=5.9.6",
-    "pygments>=2.16.1",
+    "pygments>=2.16.1,<2.19.0",
     "pytest>=7.4.3",
     "pytest-cov>=4.1.0",
     "pytest-sugar>=0.9.7",