diff --git a/pkgs/applications/office/libreoffice/README.md b/pkgs/applications/office/libreoffice/README.md
deleted file mode 100644
index ffad72092805..000000000000
--- a/pkgs/applications/office/libreoffice/README.md
+++ /dev/null
@@ -1,19 +0,0 @@
-LibreOffice
-===========
-
-Here are instructions how to update libreoffice. In the below commands and
-instructions, $VARIANT is either `still` or `fresh`.
-
-1. Update the necessary version parts in `src-$VARIANT/primary.nix`.
-2. Run the following command:
-
-```bash
-nix-shell gen-shell.nix --argstr variant VARIANT --run generate
-```
-
-3. It will fail initially, due to hash mismatch in the main `src` attribute.
-   Fix the hash according to the failure.
-4. Run the command from step 2 again, now it will take a while.
-5. Zero-out the hashes of the translations and help attributes in
-   `src-$VARIANT/primary.nix`.
-6. Update the hashes above by building `libreoffice-$VARIANT`.
diff --git a/pkgs/applications/office/libreoffice/default.nix b/pkgs/applications/office/libreoffice/default.nix
index e397136b02e1..497cdea9ef43 100644
--- a/pkgs/applications/office/libreoffice/default.nix
+++ b/pkgs/applications/office/libreoffice/default.nix
@@ -145,29 +145,33 @@ let
   };
 
   importVariant = f: import (./. + "/src-${variant}/${f}");
-
-  primary-src = importVariant "primary.nix" { inherit fetchurl; };
-
-  inherit (primary-src) major minor version;
-
-  langsSpaces = concatStringsSep " " langs;
-
+  # Update these files with:
+  # nix-shell maintainers/scripts/update.nix --argstr package libreoffice-$VARIANT.unwrapped
+  version = importVariant "version.nix";
+  srcsAttributes = {
+    main = importVariant "main.nix";
+    help = importVariant "help.nix";
+    translations = importVariant "translations.nix";
+    deps = (importVariant "deps.nix") ++ [
+      # TODO: Why is this needed?
+      (rec {
+        name = "unowinreg.dll";
+        url = "https://dev-www.libreoffice.org/extern/${md5name}";
+        sha256 = "1infwvv1p6i21scywrldsxs22f62x85mns4iq8h6vr6vlx3fdzga";
+        md5 = "185d60944ea767075d27247c3162b3bc";
+        md5name = "${md5}-${name}";
+      })
+    ];
+  };
   srcs = {
-    primary = primary-src;
-    third_party =
-      map (x: ((fetchurl { inherit (x) url sha256 name; }) // { inherit (x) md5name md5; }))
-        (importVariant "download.nix" ++ [
-          (rec {
-            name = "unowinreg.dll";
-            url = "https://dev-www.libreoffice.org/extern/${md5name}";
-            sha256 = "1infwvv1p6i21scywrldsxs22f62x85mns4iq8h6vr6vlx3fdzga";
-            md5 = "185d60944ea767075d27247c3162b3bc";
-            md5name = "${md5}-${name}";
-          })
-        ]);
-
-    translations = primary-src.translations;
-    help = primary-src.help;
+    third_party = map (x:
+      (fetchurl {
+        inherit (x) url sha256 name;
+      }) // {
+        inherit (x) md5name md5;
+      }) srcsAttributes.deps;
+    translations = fetchurl srcsAttributes.translations;
+    help = fetchurl srcsAttributes.help;
   };
 
   # See `postPatch` for details
@@ -188,8 +192,7 @@ let
 in stdenv.mkDerivation (finalAttrs: {
   pname = "libreoffice";
   inherit version;
-
-  inherit (primary-src) src;
+  src = fetchurl srcsAttributes.main;
 
   env.NIX_CFLAGS_COMPILE = toString ([
     "-I${librdf_rasqal}/include/rasqal" # librdf_redland refers to rasqal.h instead of rasqal/rasqal.h
@@ -276,7 +279,7 @@ in stdenv.mkDerivation (finalAttrs: {
   preConfigure = ''
     configureFlagsArray=(
       "--with-parallelism=$NIX_BUILD_CORES"
-      "--with-lang=${langsSpaces}"
+      "--with-lang=${concatStringsSep " " langs}"
     );
 
     chmod a+x ./bin/unpack-sources
@@ -609,6 +612,13 @@ in stdenv.mkDerivation (finalAttrs: {
   passthru = {
     inherit srcs;
     jdk = jre';
+    updateScript = [
+      ./update.sh
+      # Pass it this file name as argument
+      (builtins.unsafeGetAttrPos "pname" finalAttrs.finalPackage).file
+      # And the variant
+      variant
+    ];
     inherit kdeIntegration;
     # For the wrapper.nix
     inherit gtk3;
diff --git a/pkgs/applications/office/libreoffice/download-list-builder.sh b/pkgs/applications/office/libreoffice/download-list-builder.sh
deleted file mode 100644
index 31cab28fd82e..000000000000
--- a/pkgs/applications/office/libreoffice/download-list-builder.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-if [ -e .attrs.sh ]; then source .attrs.sh; fi
-source $stdenv/setup
-
-tar --extract --file=$src libreoffice-$version/download.lst -O > $out
diff --git a/pkgs/applications/office/libreoffice/gen-shell.nix b/pkgs/applications/office/libreoffice/gen-shell.nix
deleted file mode 100644
index 7429bb0cb382..000000000000
--- a/pkgs/applications/office/libreoffice/gen-shell.nix
+++ /dev/null
@@ -1,29 +0,0 @@
-{ pkgs ? (import <nixpkgs> {}), variant }:
-
-with pkgs;
-
-let
-
-  primary-src = callPackage (./. + "/src-${variant}/primary.nix") {};
-
-in
-
-stdenv.mkDerivation {
-  name = "generate-libreoffice-srcs-shell";
-
-  buildCommand = "exit 1";
-
-  downloadList = stdenv.mkDerivation {
-    name = "libreoffice-${primary-src.version}-download-list";
-    inherit (primary-src) src version;
-    builder = ./download-list-builder.sh;
-  };
-
-  buildInputs = [ python3 ];
-
-  shellHook = ''
-    function generate {
-      python3 generate-libreoffice-srcs.py ${variant} > src-${variant}/download.nix
-    }
-  '';
-}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/download.nix b/pkgs/applications/office/libreoffice/src-fresh/deps.nix
similarity index 100%
rename from pkgs/applications/office/libreoffice/src-fresh/download.nix
rename to pkgs/applications/office/libreoffice/src-fresh/deps.nix
diff --git a/pkgs/applications/office/libreoffice/src-fresh/help.nix b/pkgs/applications/office/libreoffice/src-fresh/help.nix
new file mode 100644
index 000000000000..b1e726bfd696
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-fresh/help.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-qQ+THdMjjrZOb2WWTqj5DlrM2a0Qkl1aYMevaqWFwfE=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.5.4/libreoffice-help-7.5.4.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/main.nix b/pkgs/applications/office/libreoffice/src-fresh/main.nix
new file mode 100644
index 000000000000..9bc26459f3ef
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-fresh/main.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-dWE7yXldkiEnsJOxfxyZ9p05eARqexgRRgNV158VVF4=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.5.4/libreoffice-7.5.4.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/primary.nix b/pkgs/applications/office/libreoffice/src-fresh/primary.nix
deleted file mode 100644
index e9dc428749bb..000000000000
--- a/pkgs/applications/office/libreoffice/src-fresh/primary.nix
+++ /dev/null
@@ -1,36 +0,0 @@
-{ fetchurl }:
-
-rec {
-  fetchSrc = {name, hash}: fetchurl {
-    url = "https://download.documentfoundation.org/libreoffice/src/${subdir}/libreoffice-${name}-${version}.tar.xz";
-    sha256 = hash;
-  };
-
-  major = "7";
-  minor = "5";
-  patch = "4";
-  tweak = "1";
-
-  subdir = "${major}.${minor}.${patch}";
-
-  version = "${subdir}${if tweak == "" then "" else "."}${tweak}";
-
-  src = fetchurl {
-    url = "https://download.documentfoundation.org/libreoffice/src/${subdir}/libreoffice-${version}.tar.xz";
-    hash = "sha256-dWE7yXldkiEnsJOxfxyZ9p05eARqexgRRgNV158VVF4=";
-  };
-
-  # FIXME rename
-  translations = fetchSrc {
-    name = "translations";
-    hash = "sha256-dv3L8DtdxZcwmeXnqtTtwIpOvwZg3aH3VvJBiiZzbh0=";
-  };
-
-  # the "dictionaries" archive is not used for LO build because we already build hunspellDicts packages from
-  # it and LibreOffice can use these by pointing DICPATH environment variable at the hunspell directory
-
-  help = fetchSrc {
-    name = "help";
-    hash = "sha256-2CrGEyK5AQEAo1Qz1ACmvMH7BaOubW5BNLWv3fDEdOY=";
-  };
-}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/translations.nix b/pkgs/applications/office/libreoffice/src-fresh/translations.nix
new file mode 100644
index 000000000000..2a1f52baa6a0
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-fresh/translations.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-frJkws1m8CiDFTW+wNP837aH+uTet30gDP5ANMo6EK0=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.5.4/libreoffice-translations-7.5.4.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/version.nix b/pkgs/applications/office/libreoffice/src-fresh/version.nix
new file mode 100644
index 000000000000..b6114fc26cdb
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-fresh/version.nix
@@ -0,0 +1 @@
+"7.5.4.2"
diff --git a/pkgs/applications/office/libreoffice/src-still/download.nix b/pkgs/applications/office/libreoffice/src-still/deps.nix
similarity index 100%
rename from pkgs/applications/office/libreoffice/src-still/download.nix
rename to pkgs/applications/office/libreoffice/src-still/deps.nix
diff --git a/pkgs/applications/office/libreoffice/src-still/help.nix b/pkgs/applications/office/libreoffice/src-still/help.nix
new file mode 100644
index 000000000000..90d69dc99e20
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-still/help.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-vcQWE3mBZx2sBQ9KzTh6zM7277mK9twfvyESTzTiII8=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.4.7/libreoffice-help-7.4.7.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-still/main.nix b/pkgs/applications/office/libreoffice/src-still/main.nix
new file mode 100644
index 000000000000..7a1947b77d23
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-still/main.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-dD2R8qE4png4D6eo7LWyQB2ZSwZ7MwdQ8DrY9SOi+yA=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.4.7/libreoffice-7.4.7.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-still/primary.nix b/pkgs/applications/office/libreoffice/src-still/primary.nix
deleted file mode 100644
index e0cbdc5da9af..000000000000
--- a/pkgs/applications/office/libreoffice/src-still/primary.nix
+++ /dev/null
@@ -1,36 +0,0 @@
-{ fetchurl }:
-
-rec {
-  fetchSrc = {name, hash}: fetchurl {
-    url = "https://download.documentfoundation.org/libreoffice/src/${subdir}/libreoffice-${name}-${version}.tar.xz";
-    inherit hash;
-  };
-
-  major = "7";
-  minor = "4";
-  patch = "7";
-  tweak = "2";
-
-  subdir = "${major}.${minor}.${patch}";
-
-  version = "${subdir}${if tweak == "" then "" else "."}${tweak}";
-
-  src = fetchurl {
-    url = "https://download.documentfoundation.org/libreoffice/src/${subdir}/libreoffice-${version}.tar.xz";
-    hash = "sha256-dD2R8qE4png4D6eo7LWyQB2ZSwZ7MwdQ8DrY9SOi+yA=";
-  };
-
-  # FIXME rename
-  translations = fetchSrc {
-    name = "translations";
-    hash = "sha256-7wea0EClmvwcPvgQDGagkOF7eBVvYTZScCEEpirdXnE=";
-  };
-
-  # the "dictionaries" archive is not used for LO build because we already build hunspellDicts packages from
-  # it and LibreOffice can use these by pointing DICPATH environment variable at the hunspell directory
-
-  help = fetchSrc {
-    name = "help";
-    hash = "sha256-vcQWE3mBZx2sBQ9KzTh6zM7277mK9twfvyESTzTiII8=";
-  };
-}
diff --git a/pkgs/applications/office/libreoffice/src-still/translations.nix b/pkgs/applications/office/libreoffice/src-still/translations.nix
new file mode 100644
index 000000000000..2aedb0bd4677
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-still/translations.nix
@@ -0,0 +1,4 @@
+{
+  sha256 = "sha256-7wea0EClmvwcPvgQDGagkOF7eBVvYTZScCEEpirdXnE=";
+  url = "https://download.documentfoundation.org/libreoffice/src/7.4.7/libreoffice-translations-7.4.7.2.tar.xz";
+}
diff --git a/pkgs/applications/office/libreoffice/src-still/version.nix b/pkgs/applications/office/libreoffice/src-still/version.nix
new file mode 100644
index 000000000000..9e4cf6e86c07
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-still/version.nix
@@ -0,0 +1 @@
+"7.4.7.1"
diff --git a/pkgs/applications/office/libreoffice/update.sh b/pkgs/applications/office/libreoffice/update.sh
new file mode 100755
index 000000000000..a04e668e8188
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/update.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p python3 pup curl jq nix
+
+set -euo pipefail
+echoerr() { echo "$@" 1>&2; }
+
+fname="$1"
+echoerr got fname $fname
+shift
+
+variant="$1"
+# See comment near version_major variable
+if [[ $variant == fresh ]]; then
+    head_tail=head
+elif [[ $variant == still ]]; then
+    head_tail=tail
+else
+    echoerr got unknown variant $variant
+    exit 3
+fi
+echoerr got variant $variant
+shift
+
+# Not totally needed, but makes it easy to run the update in case tis folder is
+# deleted.
+mkdir -p "$(dirname $fname)/src-$variant"
+cd "$(dirname $fname)/src-$variant"
+
+# The pup command prints both fresh and still versions one after another, and
+# we use either head -1 or tail -1 to get the right version, per the if elif
+# above.
+version_major="$(curl --silent https://www.libreoffice.org/download/download-libreoffice/ |\
+    pup '.dl_version_number text{}' | $head_tail -1)"
+echoerr got from website ${variant}_version $version_major
+baseurl=https://download.documentfoundation.org/libreoffice/src/$version_major
+tarballs=($(curl --silent $baseurl/ |\
+    pup 'table json{}' |\
+    jq --raw-output '.. | .href? | strings' |\
+    grep "$version_major.*.tar.xz$"))
+
+full_version="$(echo ${tarballs[0]} | sed -e 's/^libreoffice-//' -e 's/.tar.xz$//')"
+echoerr full version is $full_version
+echo \"$full_version\" > version.nix
+
+for t in help translations; do
+    echo "{" > $t.nix
+    echo "  sha256 = "\"$(nix-prefetch-url $baseurl/libreoffice-$t-$full_version.tar.xz)'";' >> $t.nix
+    echo "  url = "\"$baseurl/libreoffice-$t-$full_version.tar.xz'";' >> $t.nix
+    echo "}" >> $t.nix
+done
+
+# Out of loop nix-prefetch-url, because there is no $t, and we want the output
+# path as well, to get the download.lst file from there afterwards.
+main_path_hash=($(nix-prefetch-url --print-path $baseurl/libreoffice-$full_version.tar.xz))
+echo "{" > main.nix
+echo "  sha256 = "\"${main_path_hash[0]}'";' >> main.nix
+echo "  url = "\"$baseurl/libreoffice-$full_version.tar.xz'";' >> main.nix
+echo "}" >> main.nix
+echoerr got filename ${main_path_hash[1]}
+
+# Environment variable required by ../generate-libreoffice-srcs.py
+export downloadList=/tmp/nixpkgs-libreoffice-update-download-$full_version.lst
+# Need to extract the file only if it doesn't exist, otherwise spare time be
+# skipping this.
+if [[ ! -f "$downloadList" ]]; then
+    tar --extract \
+        --file=${main_path_hash[1]} \
+        libreoffice-$full_version/download.lst \
+        -O > $downloadList
+else
+    echoerr relying on previously downloaded downloadList file
+fi
+cd ..
+python3 ./generate-libreoffice-srcs.py > src-$variant/deps.nix
diff --git a/pkgs/applications/office/libreoffice/wrapper.nix b/pkgs/applications/office/libreoffice/wrapper.nix
index 1f4059b2adfc..b44fc71c3d84 100644
--- a/pkgs/applications/office/libreoffice/wrapper.nix
+++ b/pkgs/applications/office/libreoffice/wrapper.nix
@@ -19,7 +19,9 @@
 }:
 
 let
-  inherit (unwrapped.srcs.primary) major minor;
+  inherit (unwrapped) version;
+  major = lib.versions.major version;
+  minor = lib.versions.minor version;
 
   makeWrapperArgs = builtins.concatStringsSep " " ([
     "--set" "GDK_PIXBUF_MODULE_FILE" "${librsvg}/${gdk-pixbuf.moduleDir}.cache"