diff --git a/pkgs/development/libraries/c-ares/default.nix b/pkgs/development/libraries/c-ares/default.nix
index 20bcf80d9e5..90e7a895746 100644
--- a/pkgs/development/libraries/c-ares/default.nix
+++ b/pkgs/development/libraries/c-ares/default.nix
@@ -8,11 +8,11 @@
 let self =
 stdenv.mkDerivation rec {
   pname = "c-ares";
-  version = "1.17.1";
+  version = "1.17.2";
 
   src = fetchurl {
     url = "https://c-ares.haxx.se/download/${pname}-${version}.tar.gz";
-    sha256 = "0h7wjfnk2092glqcp9mqaax7xx0s13m501z1gi0gsjl2vvvd0gfp";
+    sha256 = "sha256-SAPIRM4gzlEO8OuD+OpB+iTsqunSgMRoxYLSuyWzkT0=";
   };
 
   meta = with lib; {