diff --git a/README.rst b/README.rst
index cc1d02c..4ea45d0 100644
--- a/README.rst
+++ b/README.rst
@@ -294,6 +294,9 @@ click-odoo-update (stable)
                                  update process. Default: 0 (disabled).
     --list-only                  Log the list of addons to update without
                                  actually updating them.
+    --only-compute-hashes        Initialise hash values of installed addons.
+                                 Use this when you are sure all your addons are up-to-date
+                                 and you don't want to run `click-odoo-update --update-all`.
     --help                       Show this message and exit.
 
 Useful links
@@ -331,6 +334,7 @@ Contributors:
 - Laurent Mignon (ACSONE_)
 - Lois Rilo (ForgeFlow_)
 - Dmitry Voronin
+- Michael Tietz (MT Software)
 
 .. _ACSONE: https://acsone.eu
 .. _Tecnativa: https://tecnativa.com
diff --git a/click_odoo_contrib/update.py b/click_odoo_contrib/update.py
index 2369af5..a7c014e 100644
--- a/click_odoo_contrib/update.py
+++ b/click_odoo_contrib/update.py
@@ -265,9 +265,17 @@ def _update_db(
     watcher=None,
     list_only=False,
     ignore_addons=None,
+    only_compute_hashes=False,
 ):
     conn = odoo.sql_db.db_connect(database)
     with conn.cursor() as cr, advisory_lock(cr, "click-odoo-update/" + database):
+        if only_compute_hashes:
+            _save_installed_checksums(cr, ignore_addons)
+            _logger.info(
+                "Only computed and stored module hashes, update is not performed."
+            )
+            return
+
         _update_db_nolock(
             conn,
             database,
@@ -311,6 +319,7 @@ def OdooEnvironmentWithUpdate(database, ctx, **kwargs):
             watcher,
             ctx.params["list_only"],
             ignore_addons,
+            ctx.params["only_compute_hashes"],
         )
     finally:
         if watcher:
@@ -362,6 +371,15 @@ def OdooEnvironmentWithUpdate(database, ctx, **kwargs):
     is_flag=True,
     help="Log the list of addons to update without actually updating them.",
 )
+@click.option(
+    "--only-compute-hashes",
+    is_flag=True,
+    help=(
+        "Initialise hash values of installed addons. "
+        "Use this when you are sure all your addons are up-to-date "
+        "and you don't want to run `click-odoo-update --update-all`."
+    ),
+)
 def main(
     env,
     i18n_overwrite,
@@ -371,6 +389,7 @@ def main(
     list_only,
     ignore_addons,
     ignore_core_addons,
+    only_compute_hashes,
 ):
     """Update an Odoo database (odoo -u), automatically detecting
     addons to update based on a hash of their file content, compared
diff --git a/tests/test_update.py b/tests/test_update.py
index 34b0f13..5b784c7 100644
--- a/tests/test_update.py
+++ b/tests/test_update.py
@@ -10,7 +10,11 @@
 from click.testing import CliRunner
 from click_odoo import OdooEnvironment, odoo, odoo_bin
 
-from click_odoo_contrib.update import _load_installed_checksums, main
+from click_odoo_contrib.update import (
+    _load_installed_checksums,
+    main,
+    PARAM_INSTALLED_CHECKSUMS,
+)
 
 # this extends the addons path of the odoodb and odoocfg fixtures
 # we use the v1 dir, so the first install work (since it's only since version 12
@@ -51,10 +55,11 @@ def _check_expected(odoodb, v):
 
 
 def _install_one(odoodb, v):
+    addon_name = "addon_app"
     cmd = [
         odoo_bin,
         "--addons-path",
-        _addons_path("v1"),
+        _addons_path(v),
         "-d",
         odoodb,
         "-i",
@@ -95,6 +100,24 @@ def _update_list(odoodb, v):
     subprocess.check_call(cmd)
 
 
+def _only_compute_hashes(odoodb, v, ignore_addons=None, ignore_core_addons=None):
+    cmd = [
+        sys.executable,
+        "-m",
+        "click_odoo_contrib.update",
+        "--addons-path",
+        _addons_path(v),
+        "-d",
+        odoodb,
+        "--only-compute-hashes",
+    ]
+    if ignore_addons:
+        cmd += ["--ignore-addons", ignore_addons]
+    if ignore_core_addons:
+        cmd += ["--ignore-core-addons"]
+    subprocess.check_call(cmd)
+
+
 def test_update(odoodb):
     _install_one(odoodb, "v1")
     _check_expected(odoodb, "v1")
@@ -170,3 +193,44 @@ def test_parallel_watcher(odoodb):
     ]
     subprocess.check_call(cmd)
     # TODO Test an actual lock
+
+
+def test_only_compute_hashes(odoodb):
+    version = "v3"
+    conn = odoo.sql_db.db_connect(odoodb)
+    with conn.cursor() as cr:
+        cr.execute(
+            "DELETE from ir_config_parameter where key=%s", (PARAM_INSTALLED_CHECKSUMS,)
+        )
+
+    _install_one(odoodb, version)
+    with OdooEnvironment(odoodb) as env:
+        checksums = _load_installed_checksums(env.cr)
+        assert "base" not in checksums
+        assert "addon_app" not in checksums
+        assert "addon_d1" not in checksums
+        assert "addon_d2" not in checksums
+
+    _only_compute_hashes(odoodb, version, "addon_d1,addon_d2", True)
+    with OdooEnvironment(odoodb) as env:
+        checksums = _load_installed_checksums(env.cr)
+        assert "base" not in checksums
+        assert "addon_app" in checksums
+        assert "addon_d1" not in checksums
+        assert "addon_d2" not in checksums
+
+    _only_compute_hashes(odoodb, version, None, True)
+    with OdooEnvironment(odoodb) as env:
+        checksums = _load_installed_checksums(env.cr)
+        assert "base" not in checksums
+        assert "addon_app" in checksums
+        assert "addon_d1" in checksums
+        assert "addon_d2" in checksums
+
+    _only_compute_hashes(odoodb, version)
+    with OdooEnvironment(odoodb) as env:
+        checksums = _load_installed_checksums(env.cr)
+        assert "base" in checksums
+        assert "addon_app" in checksums
+        assert "addon_d1" in checksums
+        assert "addon_d2" in checksums