diff --git a/popcorn.py b/popcorn.py
index dc1cc61..b1ea51e 100644
--- a/popcorn.py
+++ b/popcorn.py
@@ -191,7 +191,8 @@ def _(df_pkg_lazy: pl.LazyFrame):
             + lp.geom_line()
             + lp.geom_smooth(method="loess")
             + lp.labs(
-                title="Weekly downloads",
+                title="Weekly package installations",
+                caption="Count of all installed packages aggregated for each week",
             )
         )