diff --git a/Gemfile b/Gemfile
index cf20710..0e585d3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,4 +21,4 @@ gem "webrick", "~> 1.8"
 
 gem "rack", "3.0.11"
 
-gem "thor"
+gem "thor", ">= 1.3.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index a619ccd..96c8469 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
     ruby-progressbar (1.13.0)
-    thor (1.3.2)
+    thor (1.5.0)
     unicode-display_width (2.5.0)
     webrick (1.8.2)
     yard (0.9.36)