diff --git a/pkgs/tools/filesystems/s3backer/default.nix b/pkgs/tools/filesystems/s3backer/default.nix
index 35d0b7af0736..d0a1e0916367 100644
--- a/pkgs/tools/filesystems/s3backer/default.nix
+++ b/pkgs/tools/filesystems/s3backer/default.nix
@@ -4,10 +4,10 @@
 
 stdenv.mkDerivation rec {
   pname = "s3backer";
-  version = "1.6.2";
+  version = "1.6.3";
 
   src = fetchFromGitHub {
-    sha256 = "sha256-b64EEES7gO9s24hk3sZMd9guEhJNfc3DV4/NnBIcJYw=";
+    sha256 = "sha256-DOf+kpflDd2U1nXDLKYts/yf121CrBFIBI47OQa5XBs=";
     rev = version;
     repo = "s3backer";
     owner = "archiecobbs";