diff --git a/pyproject.toml b/pyproject.toml
index def2ed6..927020f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ dependencies = [
     "httpcore==1.0.9",
     "httpx==0.28.1",
     "idna==3.13",
-    "pycparser==2.23",
+    "pycparser==3.0",
     "typing_extensions==4.15.0",
 ]
 
diff --git a/requirements.txt b/requirements.txt
index 8a0a56b..46688c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ h11==0.16.0
 httpcore==1.0.9
 httpx==0.28.1
 idna==3.13
-pycparser==2.23
+pycparser==3.0
 typing_extensions==4.15.0