diff --git a/requirements.txt b/requirements.txt
index 0200f8906a..182817df4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 alembic>=0.8.4 # MIT
-pecan!=1.0.2,!=1.0.3,!=1.0.4,>=1.0.0 # BSD
+pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
 pbr>=1.6 # Apache-2.0
 SQLAlchemy<1.1.0,>=1.0.10 # MIT
 Babel>=2.3.4 # BSD