diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index 03208c5..de16ffe 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -32,4 +32,16 @@ final: prev:
     lua = prev.lua5_4;
     fmt = prev.fmt_8;
   }) ceph ceph-client;
+
+  # Update slurm to 23.02.5 to fix the firewall problem with pmix
+  slurm = prev.slurm.overrideAttrs (old: rec {
+    version = "23.02.5.1";
+    src = prev.fetchFromGitHub {
+      owner = "SchedMD";
+      repo = "slurm";
+      # The release tags use - instead of .
+      rev = "slurm-${builtins.replaceStrings ["."] ["-"] version}";
+      sha256 = "sha256-9VvZ8xySYFyBa5tZzf5WCShbEDpqE1/5t76jXX6t+bc=";
+    };
+  });
 }