diff --git a/tox.ini b/tox.ini
index 2798b57cb1..249579a0b3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,7 +37,7 @@ deps =
     latest: https://github.com/biolab/orange-widget-base/archive/refs/heads/master.zip#egg=orange-widget-base
     # GUI requirements
     oldest: orange-canvas-core==0.2.2
-    oldest: orange-widget-base==4.23.0
+    oldest: orange-widget-base==4.25.0
     oldest: AnyQt==0.2.0
     oldest: matplotlib==3.2.0
     oldest: pygments==2.8.0
@@ -61,7 +61,7 @@ deps =
     oldest: python-louvain==0.13
     # oldest: pyyaml
     # oldest: requests
-    oldest: scikit-learn==1.4.0
+    oldest: scikit-learn==1.5.1
     oldest: scipy==1.9
     # oldest: serverfiles
     oldest: xgboost==1.7.4