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--- a/requirements-common.txt
+++ b/requirements-common.txt
@@ -37,6 +37,8 @@
 python-magic==0.4.3
 python-openid==2.2.5
 pytidylib==0.2.1
+# for taskd proc name switching
+setproctitle==1.1.7
 # dep of pypeline
 textile==2.1.5
 # dep of colander