diff --git a/pkgs/development/libraries/libnbd/default.nix b/pkgs/development/libraries/libnbd/default.nix
index 2cd634325b2..2254c824154 100644
--- a/pkgs/development/libraries/libnbd/default.nix
+++ b/pkgs/development/libraries/libnbd/default.nix
@@ -11,11 +11,11 @@
 
 stdenv.mkDerivation rec {
   pname = "libnbd";
-  version = "1.7.5";
+  version = "1.7.7";
 
   src = fetchurl {
     url = "https://download.libguestfs.org/libnbd/${lib.versions.majorMinor version}-development/${pname}-${version}.tar.gz";
-    sha256 = "sha256-UxQx/wnKnCB3uC9xEfq1F0l3kHAJjp9GzbeRugKyFsk=";
+    hash = "sha256-fNeu1qx+EbKitv2I8nJAmGMF5jxN2RZGPR/LJYnOjG8=";
   };
 
   nativeBuildInputs = [