diff --git a/pkgs/by-name/im/imgp/package.nix b/pkgs/by-name/im/imgp/package.nix
index 0566de2fbad6..5bccbb99f43b 100644
--- a/pkgs/by-name/im/imgp/package.nix
+++ b/pkgs/by-name/im/imgp/package.nix
@@ -2,37 +2,41 @@
   lib,
   fetchFromGitHub,
   python3Packages,
+  installShellFiles,
+  versionCheckHook,
 }:
 
 python3Packages.buildPythonApplication (finalAttrs: {
   pname = "imgp";
-  version = "2.9";
+  version = "3.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jarun";
     repo = "imgp";
-    rev = "v${finalAttrs.version}";
-    hash = "sha256-yQ2BzOBn6Bl9ieZkREKsj1zLnoPcf0hZhZ90Za5kiKA=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-CmpF4vIu7tXSnMTl/cBq/L4SHinT/ytO2OUjdjrFQRU=";
   };
 
   build-system = [ python3Packages.setuptools ];
 
   dependencies = [ python3Packages.pillow ];
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  nativeInstallCheckInputs = [ versionCheckHook ];
+
   installFlags = [
     "DESTDIR=$(out)"
     "PREFIX="
   ];
 
   postInstall = ''
-    install -Dm555 auto-completion/bash/imgp-completion.bash $out/share/bash-completion/completions/imgp.bash
-    install -Dm555 auto-completion/fish/imgp.fish -t $out/share/fish/vendor_completions.d
-    install -Dm555 auto-completion/zsh/_imgp -t $out/share/zsh/site-functions
-  '';
-
-  checkPhase = ''
-    $out/bin/imgp --help
+    installManPage imgp.1
+    installShellCompletion --cmd imgp \
+      --bash auto-completion/bash/imgp-completion.bash \
+      --fish auto-completion/fish/imgp.fish \
+      --zsh auto-completion/zsh/_imgp
   '';
 
   meta = {