diff --git a/src/search.ts b/src/search.ts
index af5945a..8c07943 100644
--- a/src/search.ts
+++ b/src/search.ts
@@ -4,7 +4,7 @@ const regExprRequiredVersion = /(?<=(required_version.=.)).*/;
 
 export async function versionConstraintSearch(dir: string): Promise<string> {
   const files = await findInFiles.find('required_versions*s*', dir, '.tf$');
-  const key = Object.keys(files)[0];
+  const key = Object.keys(files).sort((a, b) => a.length - b.length)[0];
   const line = files[key].line;
 
   if (line) {