2 files changed, 3 insertions, 1 deletions

diff --git a/overlays/postfix-mta-sts-resolver/default.nix b/overlays/postfix-mta-sts-resolver/default.nix
index 49fbb7c9..d930cefb 100644
--- a/overlays/postfix-mta-sts-resolver/default.nix
+++ b/overlays/postfix-mta-sts-resolver/default.nix
@@ -3,6 +3,7 @@
   postfix-mta-sts-resolver =
     with prev.poetry2nix;
     mkPoetryApplication {
+      python = prev.python311;
       inherit (sources.postfix-mta-sts-resolver) pname version;
       projectDir = cleanPythonSources {
         src = prev.runCommand "sources" {} ''
diff --git a/overlays/preserve-dscp/default.nix b/overlays/preserve-dscp/default.nix
index 73721083..a1064591 100644
--- a/overlays/preserve-dscp/default.nix
+++ b/overlays/preserve-dscp/default.nix
@@ -10,7 +10,8 @@
     buildFlags = [ "preserve-dscp" ];
 
     CPATH = prev.lib.makeSearchPathOutput "dev" "include" (buildInputs ++ nativeBuildInputs);
-    BPF_CFLAGS = "-Wno-unused-command-line-argument -fno-stack-protector";
+    BPF_CFLAGS = "-Wno-unused-command-line-argument";
+    hardeningDisable = [ "stackprotector" "zerocallusedregs" ];
 
     outputs = [ "out" "lib" ];