diff --git a/constraints.txt b/constraints.txt
index 6f885e9904..e219a35686 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -36,7 +36,7 @@ roman==3.2
 shutilwhich==1.1.0
 six==1.13.0
 transaction==2.4.0
-waitress==1.4.1
+waitress==1.4.2
 z3c.pt==3.2.0
 zExceptions==4.1
 zc.lockfile==2.0
diff --git a/requirements-full.txt b/requirements-full.txt
index f87c94e0f9..0b1959ee84 100644
--- a/requirements-full.txt
+++ b/requirements-full.txt
@@ -37,7 +37,7 @@ roman==3.2
 shutilwhich==1.1.0
 six==1.13.0
 transaction==2.4.0
-waitress==1.4.1
+waitress==1.4.2
 z3c.pt==3.2.0
 zExceptions==4.1
 zc.lockfile==2.0
diff --git a/versions-prod.cfg b/versions-prod.cfg
index 4d43b859e0..13cf2ffa04 100644
--- a/versions-prod.cfg
+++ b/versions-prod.cfg
@@ -41,7 +41,7 @@ roman = 3.2
 shutilwhich = 1.1.0
 six = 1.13.0
 transaction = 2.4.0
-waitress = 1.4.1
+waitress = 1.4.2
 z3c.pt = 3.2.0
 zExceptions = 4.1
 zc.lockfile = 2.0