diff --git a/pkgs/development/libraries/s2n-tls/default.nix b/pkgs/development/libraries/s2n-tls/default.nix
index 73148c5069af..5af6eff378d9 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 = "1.4.17";
+  version = "1.5.1";
 
   src = fetchFromGitHub {
     owner = "aws";
     repo = "s2n-tls";
     rev = "v${version}";
-    hash = "sha256-Go6p+6VidsoN7IMfBp7BMGnIcttaEA0q3CRAKDO5b+c=";
+    hash = "sha256-BHDMYOHidwF6ssqSnpokXc/OwGrQNoUVb0/ubwhyiDM=";
   };
 
   nativeBuildInputs = [ cmake ];