diff --git a/pkgs/by-name/im/impl/package.nix b/pkgs/by-name/im/impl/package.nix
index 5837145cd2de9..04e4c8d266b23 100644
--- a/pkgs/by-name/im/impl/package.nix
+++ b/pkgs/by-name/im/impl/package.nix
@@ -6,13 +6,13 @@
 
 buildGoModule (finalAttrs: {
   pname = "impl";
-  version = "1.4.0";
+  version = "1.5.0";
 
   src = fetchFromGitHub {
     owner = "josharian";
     repo = "impl";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-0TSyg7YEPur+h0tkDxI3twr2PzT7tmo3shKgmSSJ6qk=";
+    hash = "sha256-E+QnG0rmr+xartUe3y7RLzOIRapphiB3cUijZER0zDs=";
   };
 
   vendorHash = "sha256-vTqDoM/LK5SHkayLKYig+tCrXLelOoILmQGCxlTWHog=";