diff --git a/.gitignore b/.gitignore
index 72989a953..dde885329 100644
--- a/.gitignore
+++ b/.gitignore
@@ -165,3 +165,4 @@ node_modules/
 
 # downloaded stuff for 08-building-search-applications
 08-building-search-applications/scripts/transcripts_the_ai_show/
+.tool-versions