diff --git a/setup.py b/setup.py
index 7c88ced..690f9c5 100755
--- a/setup.py
+++ b/setup.py
@@ -118,7 +118,7 @@ def compile_to_multilingual(self):
             "numpy >=1.16",
             "Orange3 >=3.35.0",
             "orange-canvas-core >=0.2.2",
-            "orange-widget-base >=4.20.0",
+            "orange-widget-base >=4.23.0",
             "pillow >=6.2.0",
             "requests",
             "requests_cache",
diff --git a/tox.ini b/tox.ini
index c8bfaf8..a1904cf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,7 @@ deps =
     oldest: scikit-learn~=1.0.1
     oldest: orange3==3.34.0
     oldest: orange-canvas-core==0.2.2
-    oldest: orange-widget-base==4.20.0
+    oldest: orange-widget-base==4.23.0
     latest: https://github.com/biolab/orange3/archive/refs/heads/master.zip#egg=orange3
     latest: https://github.com/biolab/orange-canvas-core/archive/refs/heads/master.zip#egg=orange-canvas-core
     latest: https://github.com/biolab/orange-widget-base/archive/refs/heads/master.zip#egg=orange-widget-base