diff --git a/.tool-versions b/.tool-versions
index 3e74a6994..ca23e3a17 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -7,6 +7,7 @@ terraform 1.9.6
 
 # Used for static analysis
 python 3.11.9
+shfmt 3.9.0
 
 # Used to lint Bash scripts
 shellcheck 0.9.0