diff --git a/.gitignore b/.gitignore
index 7826f7f..0ab205e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@ coverage_badge.svg
 .pub-cache/
 .pub/
 build/
+pubspec.lock
 
 # Android related
 **/android/**/gradle-wrapper.jar
diff --git a/lib/src/database/database.dart b/lib/src/database/database.dart
index 3998af9..d1b3d2b 100644
--- a/lib/src/database/database.dart
+++ b/lib/src/database/database.dart
@@ -99,7 +99,7 @@ class Database extends _$Database {
               await m.createTableIfNotExists(userCrossSigningKeys);
               await m.createTableIfNotExists(ssssCache);
               // mark all keys as outdated so that the cross signing keys will be fetched
-              await m.issueCustomQuery(
+              await customStatement(
                   'UPDATE user_device_keys SET outdated = true');
               from++;
             }
diff --git a/pubspec.lock b/pubspec.lock
deleted file mode 100644
index ebc2d2f..0000000
--- a/pubspec.lock
+++ /dev/null
@@ -1,677 +0,0 @@
-# Generated by pub
-# See https://dart.dev/tools/pub/glossary#lockfile
-packages:
-  _fe_analyzer_shared:
-    dependency: transitive
-    description:
-      name: _fe_analyzer_shared
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
-  analyzer:
-    dependency: transitive
-    description:
-      name: analyzer
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.39.8"
-  analyzer_plugin_fork:
-    dependency: transitive
-    description:
-      name: analyzer_plugin_fork
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.2"
-  ansicolor:
-    dependency: "direct main"
-    description:
-      name: ansicolor
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.0"
-  asn1lib:
-    dependency: transitive
-    description:
-      name: asn1lib
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.6.4"
-  async:
-    dependency: transitive
-    description:
-      name: async
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.1"
-  base58check:
-    dependency: "direct main"
-    description:
-      name: base58check
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.1"
-  boolean_selector:
-    dependency: transitive
-    description:
-      name: boolean_selector
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  build:
-    dependency: transitive
-    description:
-      name: build
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.0"
-  build_config:
-    dependency: transitive
-    description:
-      name: build_config
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.4.2"
-  build_daemon:
-    dependency: transitive
-    description:
-      name: build_daemon
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
-  build_resolvers:
-    dependency: transitive
-    description:
-      name: build_resolvers
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.9"
-  build_runner:
-    dependency: "direct dev"
-    description:
-      name: build_runner
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.10.0"
-  build_runner_core:
-    dependency: transitive
-    description:
-      name: build_runner_core
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.2.0"
-  built_collection:
-    dependency: transitive
-    description:
-      name: built_collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.3.2"
-  built_value:
-    dependency: transitive
-    description:
-      name: built_value
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "7.1.0"
-  canonical_json:
-    dependency: "direct main"
-    description:
-      name: canonical_json
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.3"
-  checked_yaml:
-    dependency: transitive
-    description:
-      name: checked_yaml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  cli_util:
-    dependency: transitive
-    description:
-      name: cli_util
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.4"
-  clock:
-    dependency: transitive
-    description:
-      name: clock
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.1"
-  code_builder:
-    dependency: transitive
-    description:
-      name: code_builder
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.2.1"
-  collection:
-    dependency: transitive
-    description:
-      name: collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.14.12"
-  convert:
-    dependency: transitive
-    description:
-      name: convert
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.1"
-  coverage:
-    dependency: transitive
-    description:
-      name: coverage
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.13.9"
-  crypto:
-    dependency: "direct main"
-    description:
-      name: crypto
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
-  csslib:
-    dependency: transitive
-    description:
-      name: csslib
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.16.1"
-  dart_style:
-    dependency: transitive
-    description:
-      name: dart_style
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.6"
-  encrypt:
-    dependency: "direct main"
-    description:
-      name: encrypt
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.0.2"
-  ffi:
-    dependency: transitive
-    description:
-      name: ffi
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.3"
-  fixnum:
-    dependency: transitive
-    description:
-      name: fixnum
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.11"
-  glob:
-    dependency: transitive
-    description:
-      name: glob
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.0"
-  graphs:
-    dependency: transitive
-    description:
-      name: graphs
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.0"
-  html:
-    dependency: transitive
-    description:
-      name: html
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.14.0+3"
-  html_unescape:
-    dependency: "direct main"
-    description:
-      name: html_unescape
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.1+3"
-  http:
-    dependency: "direct main"
-    description:
-      name: http
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.12.1"
-  http_multi_server:
-    dependency: transitive
-    description:
-      name: http_multi_server
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.0"
-  http_parser:
-    dependency: transitive
-    description:
-      name: http_parser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.1.4"
-  io:
-    dependency: transitive
-    description:
-      name: io
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.3.4"
-  isolate:
-    dependency: "direct main"
-    description:
-      name: isolate
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.3"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.6.1+1"
-  json_annotation:
-    dependency: transitive
-    description:
-      name: json_annotation
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.1"
-  lcov:
-    dependency: transitive
-    description:
-      name: lcov
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.7.0"
-  logging:
-    dependency: transitive
-    description:
-      name: logging
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.11.4"
-  markdown:
-    dependency: "direct main"
-    description:
-      name: markdown
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
-  matcher:
-    dependency: transitive
-    description:
-      name: matcher
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.12.6"
-  matrix_file_e2ee:
-    dependency: "direct main"
-    description:
-      name: matrix_file_e2ee
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.4"
-  meta:
-    dependency: transitive
-    description:
-      name: meta
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.8"
-  mime:
-    dependency: "direct main"
-    description:
-      name: mime
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.6+3"
-  moor:
-    dependency: "direct main"
-    description:
-      name: moor
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.2"
-  moor_ffi:
-    dependency: "direct dev"
-    description:
-      name: moor_ffi
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.5.0"
-  moor_generator:
-    dependency: "direct dev"
-    description:
-      name: moor_generator
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
-  multi_server_socket:
-    dependency: transitive
-    description:
-      name: multi_server_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  node_interop:
-    dependency: transitive
-    description:
-      name: node_interop
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.1"
-  node_io:
-    dependency: transitive
-    description:
-      name: node_io
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.1"
-  node_preamble:
-    dependency: transitive
-    description:
-      name: node_preamble
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.8"
-  olm:
-    dependency: "direct main"
-    description:
-      name: olm
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.1"
-  package_config:
-    dependency: transitive
-    description:
-      name: package_config
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.3"
-  password_hash:
-    dependency: "direct main"
-    description:
-      name: password_hash
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  path:
-    dependency: transitive
-    description:
-      name: path
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.0"
-  pedantic:
-    dependency: "direct dev"
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.0"
-  pointycastle:
-    dependency: transitive
-    description:
-      name: pointycastle
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  pool:
-    dependency: transitive
-    description:
-      name: pool
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.0"
-  pub_semver:
-    dependency: transitive
-    description:
-      name: pub_semver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.4"
-  pubspec_parse:
-    dependency: transitive
-    description:
-      name: pubspec_parse
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.5"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
-  random_string:
-    dependency: "direct main"
-    description:
-      name: random_string
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.1"
-  recase:
-    dependency: transitive
-    description:
-      name: recase
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
-  shelf:
-    dependency: transitive
-    description:
-      name: shelf
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.7.5"
-  shelf_packages_handler:
-    dependency: transitive
-    description:
-      name: shelf_packages_handler
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  shelf_static:
-    dependency: transitive
-    description:
-      name: shelf_static
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.8"
-  shelf_web_socket:
-    dependency: transitive
-    description:
-      name: shelf_web_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.3"
-  source_gen:
-    dependency: transitive
-    description:
-      name: source_gen
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.5"
-  source_map_stack_trace:
-    dependency: transitive
-    description:
-      name: source_map_stack_trace
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  source_maps:
-    dependency: transitive
-    description:
-      name: source_maps
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.9"
-  source_span:
-    dependency: transitive
-    description:
-      name: source_span
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.0"
-  sqlparser:
-    dependency: transitive
-    description:
-      name: sqlparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.8.1"
-  stack_trace:
-    dependency: transitive
-    description:
-      name: stack_trace
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.3"
-  stream_channel:
-    dependency: transitive
-    description:
-      name: stream_channel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  stream_transform:
-    dependency: transitive
-    description:
-      name: stream_transform
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.0"
-  string_scanner:
-    dependency: transitive
-    description:
-      name: string_scanner
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.5"
-  synchronized:
-    dependency: transitive
-    description:
-      name: synchronized
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.0"
-  term_glyph:
-    dependency: transitive
-    description:
-      name: term_glyph
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  test:
-    dependency: "direct dev"
-    description:
-      name: test
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.14.3"
-  test_api:
-    dependency: transitive
-    description:
-      name: test_api
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.15"
-  test_core:
-    dependency: transitive
-    description:
-      name: test_core
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.3.4"
-  test_coverage:
-    dependency: "direct dev"
-    description:
-      name: test_coverage
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.4.3"
-  timing:
-    dependency: transitive
-    description:
-      name: timing
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.1+2"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.6"
-  unorm_dart:
-    dependency: transitive
-    description:
-      name: unorm_dart
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.2"
-  vm_service:
-    dependency: transitive
-    description:
-      name: vm_service
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.0.4"
-  watcher:
-    dependency: transitive
-    description:
-      name: watcher
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.7+15"
-  web_socket_channel:
-    dependency: transitive
-    description:
-      name: web_socket_channel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  webkit_inspection_protocol:
-    dependency: transitive
-    description:
-      name: webkit_inspection_protocol
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.5.4"
-  yaml:
-    dependency: transitive
-    description:
-      name: yaml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.1"
-sdks:
-  dart: ">=2.7.0 <3.0.0"