diff --git a/pkgs/by-name/au/authelia/package.nix b/pkgs/by-name/au/authelia/package.nix
index 3b51064cd4a7..fff57cfd7e5c 100644
--- a/pkgs/by-name/au/authelia/package.nix
+++ b/pkgs/by-name/au/authelia/package.nix
@@ -4,9 +4,9 @@
   nodejs,
   fetchPnpmDeps,
   pnpmConfigHook,
-  pnpm_10,
+  pnpm_11,
   fetchFromGitHub,
-  buildGo125Module,
+  buildGo126Module,
   installShellFiles,
   callPackage,
   nixosTests,
@@ -15,16 +15,16 @@
       nodejs
       fetchPnpmDeps
       pnpmConfigHook
-      pnpm_10
+      pnpm_11
       fetchFromGitHub
       ;
   },
 }:
 
 let
-  pnpm = pnpm_10;
+  pnpm = pnpm_11;
 
-  buildGoModule = buildGo125Module;
+  buildGoModule = buildGo126Module;
 
   inherit (import ./sources.nix { inherit fetchFromGitHub; })
     pname
@@ -66,11 +66,6 @@ buildGoModule (finalAttrs: {
       "-X ${p}.BuildExtra=nixpkgs"
     ];
 
-  # It is required to set this to avoid a change in the
-  # handling of sync map in go 1.24+
-  # Upstream issue: https://github.com/authelia/authelia/issues/8980
-  env.GOEXPERIMENT = "nosynchashtriemap";
-
   # several tests with networking and several that want chromium
   doCheck = false;
 
diff --git a/pkgs/by-name/au/authelia/sources.nix b/pkgs/by-name/au/authelia/sources.nix
index cd9372cc2662..d234fad15cfa 100644
--- a/pkgs/by-name/au/authelia/sources.nix
+++ b/pkgs/by-name/au/authelia/sources.nix
@@ -1,14 +1,14 @@
 { fetchFromGitHub }:
 rec {
   pname = "authelia";
-  version = "4.39.19";
+  version = "4.39.20";
 
   src = fetchFromGitHub {
     owner = "authelia";
     repo = "authelia";
     rev = "v${version}";
-    hash = "sha256-wMOurdgdjykFekn0Pej3meM6WSzq9tJ+kZV9sVDvRwM=";
+    hash = "sha256-JjpfNQsqtmSKXj14fQUJsiTgfkAlSHDfqUC/x+bE+fc=";
   };
-  vendorHash = "sha256-ZDsLRMip2B8PPZu8VxW+91FVvwC2rXzohhAZFifT26g=";
-  pnpmDepsHash = "sha256-HMrC5V+Ak2dF1uPtbh8kgFc8kZI2FPMmZHJciWRYx9w=";
+  vendorHash = "sha256-dZjsYqw/ABEn1y6tZgSjbmqamO4U20Ljj/dQMFruVjU=";
+  pnpmDepsHash = "sha256-syfPg62JrTh496xi39xW/CnIwpJYo+iU5sCPP3bD2Ys=";
 }
diff --git a/pkgs/by-name/au/authelia/web.nix b/pkgs/by-name/au/authelia/web.nix
index 3f5336adfca7..ca8a276e5e31 100644
--- a/pkgs/by-name/au/authelia/web.nix
+++ b/pkgs/by-name/au/authelia/web.nix
@@ -3,12 +3,12 @@
   nodejs,
   fetchPnpmDeps,
   pnpmConfigHook,
-  pnpm_10,
+  pnpm_11,
   fetchFromGitHub,
 }:
 
 let
-  pnpm = pnpm_10;
+  pnpm = pnpm_11;
 
   inherit (import ./sources.nix { inherit fetchFromGitHub; })
     pname