diff --git a/pkgs/development/tools/fblog/default.nix b/pkgs/development/tools/fblog/default.nix
index 63592bb1359b..21b96fbef4e8 100644
--- a/pkgs/development/tools/fblog/default.nix
+++ b/pkgs/development/tools/fblog/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "fblog";
-  version = "4.1.0";
+  version = "4.2.0";
 
   src = fetchFromGitHub {
     owner = "brocode";
     repo = pname;
     rev = "v${version}";
-    sha256 = "1lj0cv1rmcqg36rxnnjh1dazn0sdggfc9kigjg3id6h0y8k7d9b3";
+    sha256 = "sha256-A5/TwISGsk9L0Z/ZF9Z/fxiMG+rcPgtAr2BNVJ+1Xfo=";
   };
 
-  cargoSha256 = "sha256-xHvnxRPxe09EmxUK9j7+V2AA1xJFP3ibwbkSs3FBgcw=";
+  cargoSha256 = "sha256-BrhYHUx28Sb6eNU3nTMlMewtokyY6+I5ww+bBVshQqk=";
 
   meta = with lib; {
     description = "A small command-line JSON log viewer";