diff --git a/requirements/base.txt b/requirements/base.txt
index 7f41a32..50acbf3 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -12,4 +12,4 @@ pyramid_jinja2==2.6.2
 python-magic==0.4.12
 requests>=2.22.0
 SQLAlchemy==1.3.0
-waitress==1.4.3
+waitress==2.1.1
diff --git a/requirements/basewindows.txt b/requirements/basewindows.txt
index f9a61f7..7b2dfa8 100644
--- a/requirements/basewindows.txt
+++ b/requirements/basewindows.txt
@@ -11,4 +11,4 @@ pyramid_jinja2==2.8
 python-magic-bin==0.4.14
 requests==2.25.1
 SQLAlchemy==1.3.22
-waitress==1.4.4
+waitress==2.1.1
diff --git a/requirements/testsqliteupdate.txt b/requirements/testsqliteupdate.txt
index def8310..ace71f6 100644
--- a/requirements/testsqliteupdate.txt
+++ b/requirements/testsqliteupdate.txt
@@ -10,7 +10,7 @@ pyramid_jinja2==2.8
 python-magic==0.4.20
 requests==2.25.1
 SQLAlchemy==1.3.22
-waitress==1.4.4
+waitress==2.1.1
 
 pylint==2.6.0
 pytest==6.2.1
diff --git a/requirements/testwindows.txt b/requirements/testwindows.txt
index afb5567..26f1968 100644
--- a/requirements/testwindows.txt
+++ b/requirements/testwindows.txt
@@ -13,7 +13,7 @@ pyramid_jinja2==2.8
 python-magic-bin==0.4.14
 requests==2.25.1
 SQLAlchemy==1.3.22
-waitress==1.4.4
+waitress==2.1.1
 pylint==2.6.0
 pytest==6.2.1
 WebTest == 2.0.35