diff --git a/conda-environment.yml b/conda-environment.yml
index 93f5cda68fc..4a598468d67 100644
--- a/conda-environment.yml
+++ b/conda-environment.yml
@@ -17,7 +17,7 @@ dependencies:
   - python
   - pyzmq >=22
   - importlib_metadata >=5.0 # [py<3.12]
-  - urwid >=2,<3
+  - urwid >=2,<3,!=2.6.2,!=2.6.3
   - tomli >=2 # [py<3.11]
 
 # optional dependencies
diff --git a/setup.cfg b/setup.cfg
index bb90ebd1ed6..24eb269b04a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -75,7 +75,8 @@ install_requires =
     psutil>=5.6.0
     pyzmq>=22
     importlib_metadata>=5.0; python_version < "3.12"
-    urwid==2.*
+    # NOTE: exclude two urwid versions that were not compatible with Tui
+    urwid==2.*,!=2.6.2,!=2.6.3
     # unpinned transient dependencies used for type checking
     rx
     promise