diff --git a/.gitignore b/.gitignore
index 1425e1d..2df8f69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,6 @@ frontend/build/
 backend/main
 backend/*.exe
 backend/tmp/
-go.sum
 
 # ── OS files ───────────────────────────────────────────
 .DS_Store
diff --git a/backend/go.sum b/backend/go.sum
new file mode 100644
index 0000000..7790d7c
--- /dev/null
+++ b/backend/go.sum
@@ -0,0 +1,2 @@
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=