diff --git a/pubspec.lock b/pubspec.lock
index 7f6af3b0d..050474ad5 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -21,14 +21,14 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.1"
+    version: "2.4.2"
   barcode:
     dependency: transitive
     description:
       name: barcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.0"
+    version: "1.16.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -36,6 +36,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   charcode:
     dependency: transitive
     description:
@@ -57,13 +64,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.9.0"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   collection:
     dependency: "direct main"
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.12"
+    version: "1.14.13"
   convert:
     dependency: transitive
     description:
@@ -77,7 +91,7 @@ packages:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.5"
   draggable_scrollbar:
     dependency: "direct main"
     description:
@@ -103,6 +117,13 @@ packages:
       url: "git://github.com/deckerst/expansion_tile_card.git"
     source: git
     version: "1.0.3"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   file:
     dependency: transitive
     description:
@@ -116,7 +137,7 @@ packages:
       name: firebase_crashlytics
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.3+3"
+    version: "0.1.4+1"
   flushbar:
     dependency: "direct main"
     description:
@@ -144,7 +165,7 @@ packages:
       name: flutter_markdown
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.2"
+    version: "0.4.3"
   flutter_native_timezone:
     dependency: "direct main"
     description:
@@ -172,7 +193,7 @@ packages:
       name: flutter_svg
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.17.4"
+    version: "0.18.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -196,21 +217,21 @@ packages:
       name: google_maps_flutter
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.5.28+1"
+    version: "0.5.29"
   google_maps_flutter_platform_interface:
     dependency: transitive
     description:
       name: google_maps_flutter_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.2"
+    version: "1.0.3"
   image:
     dependency: transitive
     description:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.12"
+    version: "2.1.14"
   intl:
     dependency: "direct main"
     description:
@@ -238,14 +259,14 @@ packages:
       name: markdown
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.5"
+    version: "2.1.7"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.8"
   meta:
     dependency: transitive
     description:
@@ -287,7 +308,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.7.0"
   path_drawing:
     dependency: transitive
     description:
@@ -322,7 +343,7 @@ packages:
       name: pdf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
+    version: "1.10.0"
   pedantic:
     dependency: "direct main"
     description:
@@ -357,7 +378,7 @@ packages:
       name: petitparser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "3.0.4"
   photo_view:
     dependency: "direct main"
     description:
@@ -408,7 +429,7 @@ packages:
       name: provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.3.1"
+    version: "4.3.2"
   pub_semver:
     dependency: transitive
     description:
@@ -504,7 +525,7 @@ packages:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.9.5"
   stream_channel:
     dependency: transitive
     description:
@@ -553,7 +574,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.15"
+    version: "0.2.17"
   tuple:
     dependency: "direct main"
     description:
@@ -567,7 +588,7 @@ packages:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.2.0"
   url_launcher:
     dependency: "direct main"
     description:
@@ -637,7 +658,7 @@ packages:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.6.1"
+    version: "4.2.0"
 sdks:
-  dart: ">=2.8.0 <3.0.0"
-  flutter: ">=1.17.0 <2.0.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"
+  flutter: ">=1.18.0-6.0.pre <2.0.0"