diff --git a/pkgs/applications/networking/cluster/k3s/update-script.sh b/pkgs/applications/networking/cluster/k3s/update-script.sh
index ac451806ff663..d6c0784050ca4 100755
--- a/pkgs/applications/networking/cluster/k3s/update-script.sh
+++ b/pkgs/applications/networking/cluster/k3s/update-script.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i bash -p curl gnugrep gnused jq yq-go nix-prefetch
+#!nix-shell -i bash -p curl gnugrep gnused jq nurl yq-go
 
 set -x -eu -o pipefail
 
@@ -141,7 +141,7 @@ cat >versions.nix <<EOF
 EOF
 
 set +e
-K3S_VENDOR_HASH=$(nix-prefetch -I nixpkgs=${NIXPKGS_ROOT} "{ sha256 }: (import ${NIXPKGS_ROOT}. {}).k3s_1_${MINOR_VERSION}.goModules.overrideAttrs (_: { vendorHash = sha256; })")
+K3S_VENDOR_HASH=$(nurl -e "(import ${NIXPKGS_ROOT}. {}).k3s_1_${MINOR_VERSION}.goModules")
 set -e
 
 if [ -n "${K3S_VENDOR_HASH:-}" ]; then