diff --git a/pkgs/development/tools/misc/coreboot-toolchain/default.nix b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
index 0229aba0f38b..f204b28ee1df 100644
--- a/pkgs/development/tools/misc/coreboot-toolchain/default.nix
+++ b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
@@ -19,12 +19,12 @@ let
 
     stdenvNoCC.mkDerivation rec {
       pname = "coreboot-toolchain-${arch}";
-      version = "4.16";
+      version = "4.19";
 
       src = fetchgit {
         url = "https://review.coreboot.org/coreboot";
         rev = version;
-        sha256 = "sha256-PCum+IvJ136eZQLovUi9u4xTLLs17MkMP5Oc0/2mMY4=";
+        sha256 = "sha256-pGS+bfX2k/ot7sHL9aiaQpA0wtbHHZEObJ/h2JGF5/4=";
         fetchSubmodules = false;
         leaveDotGit = true;
         postFetch = ''
@@ -70,7 +70,7 @@ let
   );
 in
 
-lib.listToAttrs (map (arch: lib.nameValuePair arch (common arch {})) [
+lib.listToAttrs (map (arch: lib.nameValuePair arch (common arch { })) [
   "i386"
   "x64"
   "arm"
diff --git a/pkgs/development/tools/misc/coreboot-toolchain/stable.nix b/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
index 64ee3da1ad92..f8b6bd0ea68e 100644
--- a/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
+++ b/pkgs/development/tools/misc/coreboot-toolchain/stable.nix
@@ -7,10 +7,10 @@
     };
   }
   {
-    name = "mpfr-4.1.0.tar.xz";
+    name = "mpfr-4.1.1.tar.xz";
     archive = fetchurl {
-      sha256 = "0zwaanakrqjf84lfr5hfsdr7hncwv9wj0mchlr7cmxigfgqs760c";
-      url = "mirror://gnu/mpfr/mpfr-4.1.0.tar.xz";
+      sha256 = "0gf3ibi7kzz39zj72qc9r607clyhm80gs8wbp71zzfkxasyrblgz";
+      url = "mirror://gnu/mpfr/mpfr-4.1.1.tar.xz";
     };
   }
   {
@@ -35,10 +35,10 @@
     };
   }
   {
-    name = "acpica-unix2-20211217.tar.gz";
+    name = "R10_20_22.tar.gz";
     archive = fetchurl {
-      sha256 = "0521hmaw2zhi0mpgnaf2i83dykfgql4bx98cg7xqy8wmj649z194";
-      url = "https://acpica.org/sites/acpica/files/acpica-unix2-20211217.tar.gz";
+      sha256 = "11iv3jrz27g7bv7ffyxsrgm4cq60cld2gkkl008p3lcwfyqpx88s";
+      url = "https://github.com/acpica/acpica/archive/refs/tags//R10_20_22.tar.gz";
     };
   }
   {
diff --git a/pkgs/development/tools/misc/coreboot-toolchain/update.sh b/pkgs/development/tools/misc/coreboot-toolchain/update.sh
index 3acf22e2cd7d..fc758e4ab021 100755
--- a/pkgs/development/tools/misc/coreboot-toolchain/update.sh
+++ b/pkgs/development/tools/misc/coreboot-toolchain/update.sh
@@ -1,24 +1,26 @@
 #!/usr/bin/env nix-shell
 #!nix-shell --pure -i bash -p nix cacert git getopt
 
+# shellcheck shell=bash
+
 if [ ! -d .git ]; then
-  echo "This script needs to be run from the root directory of nixpkgs. Exiting."
-  exit 1
+    echo "This script needs to be run from the root directory of nixpkgs. Exiting."
+    exit 1
 fi
 
 pkg_dir="$(dirname "$0")"
 
 src="$(nix-build . --no-out-link -A coreboot-toolchain.i386.src)"
-urls=$($src/util/crossgcc/buildgcc -u)
+urls=$("${src}/util/crossgcc/buildgcc" -u)
 
 tmp=$(mktemp)
-echo '{ fetchurl }: [' > $tmp
+echo '{ fetchurl }: [' >"$tmp"
 
 for url in $urls; do
-  name="$(basename $url)"
-  hash="$(nix-prefetch-url "$url")"
+    name="$(basename "$url")"
+    hash="$(nix-prefetch-url "$url")"
 
-  cat << EOF >> $tmp
+    cat <<EOF >>"$tmp"
   {
     name = "$name";
     archive = fetchurl {
@@ -29,8 +31,8 @@ for url in $urls; do
 EOF
 done
 
-echo ']' >> $tmp
+echo ']' >>"$tmp"
 
-sed -ie 's/https\:\/\/ftpmirror\.gnu\.org/mirror\:\/\/gnu/g' $tmp
+sed -ie 's/https\:\/\/ftpmirror\.gnu\.org/mirror\:\/\/gnu/g' "$tmp"
 
-mv $tmp $pkg_dir/sources.nix
+mv "$tmp" "${pkg_dir}/sources.nix"