diff --git a/theme.toml b/theme.toml
index 202ae49..bd24ec4 100644
--- a/theme.toml
+++ b/theme.toml
@@ -5,7 +5,7 @@ description = "A simple Hugo theme based on the Bootstrap v4 blog example."
 homepage = "https://github.com/alanorth/hugo-theme-bootstrap4"
 tags = ["bootstrap", "blog", "fontawesome"]
 features = ["responsive", "blog"]
-min_version = 0.17
+min_version = 0.18
 
 [author]
   name = "Alan Orth"