diff --git a/glue_wwt/viewer/jupyter_viewer.py b/glue_wwt/viewer/jupyter_viewer.py
index bd4562cf..37432396 100644
--- a/glue_wwt/viewer/jupyter_viewer.py
+++ b/glue_wwt/viewer/jupyter_viewer.py
@@ -204,6 +204,8 @@ class WWTJupyterViewer(WWTDataViewerBase, IPyWidgetView):
         WWTTableLayerArtist: JupyterTableLayerOptions,
     }
 
+    tools = ["wwt:refresh_cache"]
+
     def __init__(self, session, state=None):
         IPyWidgetView.__init__(self, session, state=state)
         WWTDataViewerBase.__init__(self)
diff --git a/glue_wwt/viewer/qt_data_viewer.py b/glue_wwt/viewer/qt_data_viewer.py
index 1a535bb9..0e3583ec 100644
--- a/glue_wwt/viewer/qt_data_viewer.py
+++ b/glue_wwt/viewer/qt_data_viewer.py
@@ -10,7 +10,7 @@
 from .table_style_editor import WWTTableStyleEditor
 
 # We import the following to register the save tool
-from . import tools  # noqa
+from . import tools as wwt_tools  # noqa
 
 __all__ = ['WWTQtViewer']
 
@@ -24,6 +24,7 @@ class WWTQtViewer(WWTDataViewerBase, DataViewer):
     }
 
     subtools = {'save': ['wwt:save', 'wwt:savetour']}
+    tools = ["save", "wwt:refresh_cache"]
 
     def __init__(self, session, parent=None, state=None):
         DataViewer.__init__(self, session, parent=None, state=state)
diff --git a/glue_wwt/viewer/refresh_cache.png b/glue_wwt/viewer/refresh_cache.png
new file mode 100644
index 00000000..7a085181
Binary files /dev/null and b/glue_wwt/viewer/refresh_cache.png differ
diff --git a/glue_wwt/viewer/tools.py b/glue_wwt/viewer/tools.py
index 8293e2f0..22b9e07e 100644
--- a/glue_wwt/viewer/tools.py
+++ b/glue_wwt/viewer/tools.py
@@ -2,6 +2,7 @@
 
 import io
 import time
+from os.path import abspath, dirname, join
 from qtpy import compat
 
 from glue.viewers.common.tool import Tool
@@ -112,3 +113,15 @@ def activate(self):
 
         with io.open(filename, 'w', newline='') as f:
             f.write(tourxml)
+
+
+@viewer_tool
+class RefreshTileCacheTool(Tool):
+
+    icon = abspath(join(dirname(__file__), 'refresh_cache'))
+    tool_id = 'wwt:refresh_cache'
+    action_text = 'Refresh the WWT tile cache'
+    tool_tip = 'Refresh the WWT tile cache'
+
+    def activate(self):
+        self.viewer._wwt.refresh_tile_cache()
diff --git a/pyproject.toml b/pyproject.toml
index 00ddb97e..e6543947 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "glue-core>=1.13.1",
     "echo",
     "astropy",
-    "pywwt>=0.21.0",
+    "pywwt>=0.24.1",
     "packaging",
 ]
 dynamic = ["version"]