diff --git a/pkgs/development/cuda-modules/packages/nccl-tests.nix b/pkgs/development/cuda-modules/packages/nccl-tests.nix
index 2be5633ee327..349bbf7cec7e 100644
--- a/pkgs/development/cuda-modules/packages/nccl-tests.nix
+++ b/pkgs/development/cuda-modules/packages/nccl-tests.nix
@@ -30,13 +30,13 @@ backendStdenv.mkDerivation (finalAttrs: {
   # NOTE: Depends on the CUDA package set, so use cudaNamePrefix.
   name = "${cudaNamePrefix}-${finalAttrs.pname}-${finalAttrs.version}";
   pname = "nccl-tests";
-  version = "2.18.3";
+  version = "2.18.5";
 
   src = fetchFromGitHub {
     owner = "NVIDIA";
     repo = "nccl-tests";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-dhpJxt7TJMTgBTAEFTznHxLidPpK2Fz6UUV/FQ41AzM=";
+    hash = "sha256-XH5/hS1oy1V8w4nIx7+RRaiUrOIPDGwLSFpVKSnOOJE=";
   };
 
   postPatch = ''