diff --git a/climetlab/__init__.py b/climetlab/__init__.py
index c9387dbd..fbe423fc 100644
--- a/climetlab/__init__.py
+++ b/climetlab/__init__.py
@@ -19,7 +19,7 @@
 from .plotting import plot_map
 from .sources import load as load_source
 
-__version__ = "0.3.14"
+__version__ = "0.3.15"
 
 
 __all__ = [
diff --git a/setup.py b/setup.py
index 444fbbc8..f399ff4c 100644
--- a/setup.py
+++ b/setup.py
@@ -71,7 +71,7 @@ def read(fname):
     "markdown",
     "entrypoints",
     "branca==0.3.1",  # See https://github.com/python-visualization/branca/issues/81"
-    "folium",
+    "folium>=0.12.1",
 ]
 
 extras_require = {"interactive": ["skinnywms", "folium"]}