diff --git a/requirements.txt b/requirements.txt
index ae52644..9d46bab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ logging-color-formatter==1.0.2
 PasteDeploy==1.5.2
 plaster==1.0
 plaster-pastedeploy==0.6
-pycparser==2.18
+pycparser==2.19
 pyramid==1.9.1
 pyramid-multiauth==0.9.0
 pyramid-tm==2.2.1