diff --git a/pkgs/by-name/us/usage/package.nix b/pkgs/by-name/us/usage/package.nix
index ecfaa11b1b64..1590a88a66f6 100644
--- a/pkgs/by-name/us/usage/package.nix
+++ b/pkgs/by-name/us/usage/package.nix
@@ -6,22 +6,23 @@
   installShellFiles,
   nix-update-script,
   nodejs,
+  bashInteractive,
   usage,
   testers,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "usage";
-  version = "4.0.0";
+  version = "5.1.0";
 
   src = fetchFromGitHub {
     owner = "jdx";
     repo = "usage";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-OY+cwnwaJ9WBufCVp8x1SloWfAwH8obSfinDhdFbSM8=";
+    hash = "sha256-UbZ1KCTgFTwzZWxxwaQcoR1B7uHdP0OxJUKBvanIvbQ=";
   };
 
-  cargoHash = "sha256-vICOSUnHMzzg4LBdzImLSnRxxhnfzB0elXvirYkBPqM=";
+  cargoHash = "sha256-4NZdBvURBpfaaPAjtCmpDV99OE4/6HTZf5mmHcQ5NNU=";
 
   postPatch = ''
     substituteInPlace ./examples/*.sh \
@@ -33,12 +34,16 @@ rustPlatform.buildRustPackage (finalAttrs: {
   nativeCheckInputs = [
     # for some tests
     nodejs
+    bashInteractive
   ];
 
-  checkFlags = [
-    # has --include-bash-completion-lib so requires external lib downloaded on runtime
-    "--skip=test_bash_completion_init_integration"
-  ];
+  # The bash completion tests drive `complete -D`, a builtin that bash only
+  # compiles in when readline support is enabled. The plain `bash` used in the
+  # build sandbox is built with `--disable-readline`, so the tests honor the
+  # USAGE_SHELL_BASH env var to run under a readline-enabled bash instead.
+  preCheck = ''
+    export USAGE_SHELL_BASH="${bashInteractive}/bin/bash"
+  '';
 
   postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
     installShellCompletion --cmd usage \