diff --git a/pkgs/by-name/pi/picocrypt/package.nix b/pkgs/by-name/pi/picocrypt/package.nix
index c947c30d2c66..b0310ea54f66 100644
--- a/pkgs/by-name/pi/picocrypt/package.nix
+++ b/pkgs/by-name/pi/picocrypt/package.nix
@@ -15,18 +15,18 @@
 
 buildGoModule rec {
   pname = "picocrypt";
-  version = "1.38";
+  version = "1.40";
 
   src = fetchFromGitHub {
     owner = "Picocrypt";
     repo = "Picocrypt";
-    rev = version;
-    hash = "sha256-rKYqzXdQrSLZhPXb4NeLSSrNJSfztsdPYbWWn+7ZYJo=";
+    rev = "refs/tags/${version}";
+    hash = "sha256-L3UkWUT6zsUj5C/RHVvaTbt6E8VERk3hZNBGSGbON3c=";
   };
 
   sourceRoot = "${src.name}/src";
 
-  vendorHash = "sha256-lc34GeO8y5XGRk0x6ghw/m/Ew7TDn6MOk4fc2u9UofQ=";
+  vendorHash = "sha256-YYQMJXyVANDrYsd7B/q8L5dpvbzxqjLvm6v20PnpAkY=";
 
   ldflags = [
     "-s"