diff --git a/pkgs/development/libraries/s2n-tls/default.nix b/pkgs/development/libraries/s2n-tls/default.nix
index a8c8a22ff1bb..4b45b1e1f5b6 100644
--- a/pkgs/development/libraries/s2n-tls/default.nix
+++ b/pkgs/development/libraries/s2n-tls/default.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation rec {
   pname = "s2n-tls";
-  version = "1.4.6";
+  version = "1.4.7";
 
   src = fetchFromGitHub {
     owner = "aws";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-x4/AkmkmuTKxzlk8AxbydA4GctpShsKiFTTJ8m7B4TY=";
+    hash = "sha256-xaw6aU4Sdu5aOEtt1QeA/jzIe0/Re2Z6PUSIAHj2aSM=";
   };
 
   nativeBuildInputs = [ cmake ];