diff --git a/nixos/tests/matrix/mjolnir.nix b/nixos/tests/matrix/mjolnir.nix
index f1e5e7821f82..42239e7ed81c 100644
--- a/nixos/tests/matrix/mjolnir.nix
+++ b/nixos/tests/matrix/mjolnir.nix
@@ -118,7 +118,7 @@ in
           (pkgs.writers.writePython3Bin "create_management_room_and_invite_mjolnir"
             {
               libraries = with pkgs.python3Packages; [
-                (matrix-nio.override { withOlm = true; })
+                (matrix-nio.override { withVodozemac = true; })
               ];
             }
             ''
diff --git a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix/default.nix b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix/default.nix
index be2ca10be6a7..24c15c5fbe69 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix/default.nix
@@ -60,7 +60,7 @@ buildPythonPackage {
     attrs
     logbook
     pygments
-    (matrix-nio.override { withOlm = true; })
+    (matrix-nio.override { withVodozemac = true; })
     aiohttp
     requests
   ];
diff --git a/pkgs/by-name/ma/matrix-commander/package.nix b/pkgs/by-name/ma/matrix-commander/package.nix
index a31c193028cb..97ed63a26da1 100644
--- a/pkgs/by-name/ma/matrix-commander/package.nix
+++ b/pkgs/by-name/ma/matrix-commander/package.nix
@@ -33,7 +33,7 @@ python3Packages.buildPythonApplication rec {
   ]
   ++ (with python3Packages; [
     setuptools
-    (matrix-nio.override { withOlm = true; })
+    (matrix-nio.override { withVodozemac = true; })
     python-magic
     markdown
     pillow
diff --git a/pkgs/by-name/op/opsdroid/package.nix b/pkgs/by-name/op/opsdroid/package.nix
index fe558b2531fc..57bbfe9e8a8e 100644
--- a/pkgs/by-name/op/opsdroid/package.nix
+++ b/pkgs/by-name/op/opsdroid/package.nix
@@ -36,7 +36,7 @@ python3Packages.buildPythonPackage rec {
     emoji
     get-video-properties
     ibm-watson
-    (matrix-nio.override { withOlm = true; })
+    (matrix-nio.override { withVodozemac = true; })
     mattermostdriver
     motor
     multidict
diff --git a/pkgs/by-name/pa/pantalaimon/package.nix b/pkgs/by-name/pa/pantalaimon/package.nix
index d4dccd139d94..1209826c6239 100644
--- a/pkgs/by-name/pa/pantalaimon/package.nix
+++ b/pkgs/by-name/pa/pantalaimon/package.nix
@@ -43,7 +43,7 @@ python3Packages.buildPythonApplication rec {
       janus
       keyring
       logbook
-      (matrix-nio.override { withOlm = true; })
+      (matrix-nio.override { withVodozemac = true; })
       peewee
       platformdirs
       prompt-toolkit
diff --git a/pkgs/development/python-modules/matrix-nio/default.nix b/pkgs/development/python-modules/matrix-nio/default.nix
index 75385ef5f24f..42e54cf048a8 100644
--- a/pkgs/development/python-modules/matrix-nio/default.nix
+++ b/pkgs/development/python-modules/matrix-nio/default.nix
@@ -20,7 +20,7 @@
   atomicwrites,
   cachetools,
   peewee,
-  python-olm,
+  vodozemac,
 
   # tests
   aioresponses,
@@ -40,7 +40,7 @@
   weechatScripts,
   zulip,
 
-  withOlm ? false,
+  withVodozemac ? false,
 }:
 
 buildPythonPackage rec {
@@ -72,13 +72,13 @@ buildPythonPackage rec {
     pycryptodome
     unpaddedbase64
   ]
-  ++ lib.optionals withOlm optional-dependencies.e2e;
+  ++ lib.optionals withVodozemac optional-dependencies.e2e;
 
   optional-dependencies = {
     e2e = [
       atomicwrites
       cachetools
-      python-olm
+      vodozemac
       peewee
     ];
   };
@@ -101,7 +101,7 @@ buildPythonPackage rec {
 
   pytestFlags = [ "--benchmark-disable" ];
 
-  disabledTestPaths = lib.optionals (!withOlm) [
+  disabledTestPaths = lib.optionals (!withVodozemac) [
     "tests/encryption_test.py"
     "tests/key_export_test.py"
     "tests/memory_store_test.py"
@@ -116,7 +116,7 @@ buildPythonPackage rec {
     # time dependent and flaky
     "test_transfer_monitor_callbacks"
   ]
-  ++ lib.optionals (!withOlm) [
+  ++ lib.optionals (!withVodozemac) [
     "test_client_account_sharing"
     "test_client_key_query"
     "test_client_login"