diff --git a/setup/management.sh b/setup/management.sh
index 1c57bb2e..21572a90 100755
--- a/setup/management.sh
+++ b/setup/management.sh
@@ -51,7 +51,7 @@ hide_output $venv/bin/pip install --upgrade \
 	rtyaml "email_validator>=1.0.0" "exclusiveprocess" \
 	flask dnspython python-dateutil \
   qrcode[pil] pyotp \
-	"idna>=2.0.0" "cryptography==2.2.2" boto psutil postfix-mta-sts-resolver b2sdk
+	"idna>=2.0.0" "cryptography==2.2.2" boto psutil postfix-mta-sts-resolver b2sdk expiringdict
 
 # CONFIGURATION