diff --git a/pkgs/by-name/c-/c-ares/package.nix b/pkgs/by-name/c-/c-ares/package.nix
index 35d956d9d5b1..78a4a573cff7 100644
--- a/pkgs/by-name/c-/c-ares/package.nix
+++ b/pkgs/by-name/c-/c-ares/package.nix
@@ -18,7 +18,7 @@
 
 stdenv.mkDerivation rec {
   pname = "c-ares";
-  version = "1.34.6";
+  version = "1.34.7";
 
   strictDeps = true;
   __structuredAttrs = true;
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   src = fetchurl {
     # Note: tag name varies in some versions, e.g. v1.30.0, c-ares-1_17_0.
     url = "https://github.com/c-ares/c-ares/releases/download/v${version}/c-ares-${version}.tar.gz";
-    hash = "sha256-kS3XzDs+innFL9f7nA9Ozwqqc+Re/aiAJmotbia4TvU=";
+    hash = "sha256-VW94HdGIrZMtyCY/7grTqrpnW0zY5U2GkIaBtDzj4yc=";
   };
 
   outputs = [