diff --git a/pkgs/development/libraries/libsoup/3.x.nix b/pkgs/development/libraries/libsoup/3.x.nix
index ba4d1b0cd8a6..cbaaf086b01b 100644
--- a/pkgs/development/libraries/libsoup/3.x.nix
+++ b/pkgs/development/libraries/libsoup/3.x.nix
@@ -22,13 +22,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libsoup";
-  version = "3.4.2";
+  version = "3.4.3";
 
   outputs = [ "out" "dev" ] ++ lib.optional withIntrospection "devdoc";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-eMj6N8sVLUDsjEoUjWFV4vaUfz8WAqfNo6Ma1A9e4vM=";
+    sha256 = "sha256-t/G7rutD9YEtq6PuJYpy4bSxTC/ZH0oaddTuoQ3PKI8=";
   };
 
   depsBuildBuild = [