diff --git a/go.mod b/go.mod
index e76267a..9338ae5 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module git.front.kjuulh.io/kjuulh/byg
 
 go 1.19
 
-require golang.org/x/sync v0.1.0
+require golang.org/x/sync v0.4.0
diff --git a/go.sum b/go.sum
index 595d314..4c9c8a5 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,4 @@
 golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
+golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=