diff --git a/docs/requirements.txt b/docs/requirements.txt
index da946818..72624658 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -34,7 +34,7 @@ pbr==5.6.0
 platformdirs==2.3.0
 pre-commit==2.14.1
 prompt-toolkit==1.0.14
-pycparser==2.20
+pycparser==2.21
 PyGithub==1.55
 Pygments==2.10.0
 pyhcl==0.4.4
diff --git a/requirements.txt b/requirements.txt
index b1829d79..9310814d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ pathspec==0.9.0
 platformdirs==2.3.0
 pre-commit==2.14.1
 prompt-toolkit==1.0.14
-pycparser==2.20
+pycparser==2.21
 PyGithub==1.55
 Pygments==2.10.0
 pyhcl==0.4.4