diff --git a/pkgs/development/tools/misc/coreboot-toolchain/default.nix b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
index dc96f6e3c6ce..66eff5e2427c 100644
--- a/pkgs/development/tools/misc/coreboot-toolchain/default.nix
+++ b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
@@ -17,14 +17,14 @@ let
     , withAda ? true
     }:
 
-    stdenvNoCC.mkDerivation rec {
+    stdenvNoCC.mkDerivation {
       pname = "coreboot-toolchain-${arch}";
-      version = "4.20";
+      version = "4.21";
 
       src = fetchgit {
         url = "https://review.coreboot.org/coreboot";
-        rev = "465fbbe93ee01b4576689a90b7ddbeec23cdace2";
-        hash = "sha256-vzXOl+Z8VYh9Iq6+AMNb3apMv185J3mODauKMinSOI4=";
+        rev = "c1386ef6128922f49f93de5690ccd130a26eecf2";
+        hash = "sha256-tFGyI170vbhRgJZDix69DfOD5nIY8T4chSP+qTt3kC8=";
         fetchSubmodules = false;
         leaveDotGit = true;
         postFetch = ''
diff --git a/pkgs/development/tools/misc/coreboot-toolchain/stable.nix b/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
index a432aab59e78..d4419687ebee 100644
--- a/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
+++ b/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
@@ -21,10 +21,10 @@
     };
   }
   {
-    name = "gcc-11.3.0.tar.xz";
+    name = "gcc-11.4.0.tar.xz";
     archive = fetchurl {
-      sha256 = "0fdclcwf728wbq52vphfcjywzhpsjp3kifzj3pib3xcihs0z4z5l";
-      url = "mirror://gnu/gcc/gcc-11.3.0/gcc-11.3.0.tar.xz";
+      sha256 = "1ncd7akww0hl5kkmw1dj3qgqp3phdrr5dfnm7jia9s07n0ib4b9z";
+      url = "mirror://gnu/gcc/gcc-11.4.0/gcc-11.4.0.tar.xz";
     };
   }
   {
@@ -35,17 +35,17 @@
     };
   }
   {
-    name = "R10_20_22.tar.gz";
+    name = "R06_28_23.tar.gz";
     archive = fetchurl {
-      sha256 = "11iv3jrz27g7bv7ffyxsrgm4cq60cld2gkkl008p3lcwfyqpx88s";
-      url = "https://github.com/acpica/acpica/archive/refs/tags/R10_20_22.tar.gz";
+      sha256 = "0cadxihshyrjplrx01vna13r1m2f6lj1klw7mh8pg2m0gjdpjj12";
+      url = "https://github.com/acpica/acpica/archive/refs/tags/R06_28_23.tar.gz";
     };
   }
   {
-    name = "nasm-2.15.05.tar.bz2";
+    name = "nasm-2.16.01.tar.bz2";
     archive = fetchurl {
-      sha256 = "1l1gxs5ncdbgz91lsl4y7w5aapask3w02q9inayb2m5bwlwq6jrw";
-      url = "https://www.nasm.us/pub/nasm/releasebuilds/2.15.05/nasm-2.15.05.tar.bz2";
+      sha256 = "0bmv8xbzck7jim7fzm6jnwiahqkprbpz6wzhg53irm28w0pavdim";
+      url = "https://www.nasm.us/pub/nasm/releasebuilds/2.16.01/nasm-2.16.01.tar.bz2";
     };
   }
 ]