diff --git a/dependabot/requirements.txt b/dependabot/requirements.txt
index fd825d1..7f50572 100644
--- a/dependabot/requirements.txt
+++ b/dependabot/requirements.txt
@@ -49,7 +49,7 @@ soupsieve==2.5
 tqdm==4.66.1
 traitlets==5.14.1
 twine==4.0.2
-waitress==2.1.2
+waitress==3.0.0
 WebOb==1.8.7
 WebTest==3.0.0
 WSGIProxy2==0.5.1
diff --git a/grok-versions.cfg b/grok-versions.cfg
index 18c7864..f10ca5f 100644
--- a/grok-versions.cfg
+++ b/grok-versions.cfg
@@ -53,7 +53,7 @@ soupsieve = 2.5
 tqdm = 4.66.1
 traitlets = 5.14.1
 twine = 4.0.2
-waitress = 2.1.2
+waitress = 3.0.0
 WebOb = 1.8.7
 WebTest = 3.0.0
 WSGIProxy2 = 0.5.1
@@ -69,6 +69,7 @@ importlib-resources = 5.12.0
 # Newer versions require Python 3.8+
 soupsieve = 2.4.1
 typing-extensions = 4.7.1
+waitress = 2.1.2
 zipp = 3.15.0
 
 [versions:python38]