diff --git a/requirements.txt b/requirements.txt
index 07eecd955..8f4cbaa2a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ nltk>=3.0.5     # TweetTokenizer introduced in 3.0.5
 numpy
 odfpy>=1.3.5
 Orange3 >=3.28.0
-orange-widget-base >=4.12.0
+orange-widget-base >=4.14.0
 pandas
 pdfminer3k>=1.3.1
 pyqtgraph
diff --git a/tox.ini b/tox.ini
index 8f05934a3..2304802a3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,7 +31,7 @@ deps =
 
     # Use newer canvas-core and widget-base to avoid segfaults on windows
     oldest: orange-canvas-core==0.1.19
-    oldest: orange-widget-base==4.12.0
+    oldest: orange-widget-base==4.14.0
     latest: git+git://github.com/biolab/orange3.git#egg=orange3
     latest: git+git://github.com/biolab/orange3-network.git#egg=orange3-network
     latest: git+git://github.com/biolab/orange-canvas-core.git#egg=orange-canvas-core