diff --git a/requirements/common.txt b/requirements/common.txt
index 658412d6d7..407c6b190b 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -1,4 +1,4 @@
-pycparser==2.14 # Only 2.14 works.
+pycparser==2.19
 Flask~=1.1.1
 Flask-Limiter~=1.0.1
 Flask-Script~=2.0.6