diff --git a/pkgs/tools/networking/croc/default.nix b/pkgs/tools/networking/croc/default.nix
index 6772ccb750f1..36d92d275b7d 100644
--- a/pkgs/tools/networking/croc/default.nix
+++ b/pkgs/tools/networking/croc/default.nix
@@ -2,13 +2,13 @@
 
 buildGoModule rec {
   pname = "croc";
-  version = "9.6.16";
+  version = "10.0.5";
 
   src = fetchFromGitHub {
     owner = "schollz";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-rAOWiu0f9f1v1oD5HI/kl1knoHkU2LgS3D2qsdd98y4=";
+    hash = "sha256-JrlNvfOxoOhvsjaRacGLZAc4r9HG69UdjFjb3GnSnW0=";
   };
 
   vendorHash = "sha256-SxdN1IyQd/DLI8ZXyCWsW3JLi4dlGSvpr+ub/Oqkw70=";
@@ -20,6 +20,7 @@ buildGoModule rec {
       local-relay = callPackage ./test-local-relay.nix { };
     };
   };
+
   meta = with lib; {
     description = "Easily and securely send things from one computer to another";
     longDescription = ''
diff --git a/pkgs/tools/networking/croc/test-local-relay.nix b/pkgs/tools/networking/croc/test-local-relay.nix
index a3aa0f3c966d..90d335885e7f 100644
--- a/pkgs/tools/networking/croc/test-local-relay.nix
+++ b/pkgs/tools/networking/croc/test-local-relay.nix
@@ -6,15 +6,20 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ croc ];
 
   buildCommand = ''
-    HOME=$(mktemp -d)
+    HOME="$(mktemp -d)"
     # start a local relay
     croc relay --ports 11111,11112 &
+
+    export CROC_SECRET="sN3nx4hGLeihmn8G"
+
     # start sender in background
     MSG="See you later, alligator!"
     croc --relay localhost:11111 send --code correct-horse-battery-staple --text "$MSG" &
+
     # wait for things to settle
     sleep 1
     MSG2=$(croc --relay localhost:11111 --yes correct-horse-battery-staple)
+
     # compare
     [ "$MSG" = "$MSG2" ] && touch $out
   '';