diff --git a/requirements.txt b/requirements.txt
index 8394b25a7..284c6a5b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Dependencies for generating/publishing Python binaries.
-bob-builder==0.0.19
+bob-builder==0.0.20
 
 # Sub-dependencies of bob-builder.
 boto==2.49.0