diff --git a/app/pubspec.lock b/app/pubspec.lock
index b06bfcc08..82e9edc18 100644
--- a/app/pubspec.lock
+++ b/app/pubspec.lock
@@ -476,7 +476,7 @@ packages:
       name: fast_rsa
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "3.4.7"
   feature_discovery:
     dependency: "direct main"
     description:
@@ -750,6 +750,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.2"
+  flat_buffers:
+    dependency: transitive
+    description:
+      name: flat_buffers
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.5"
   flutter:
     dependency: "direct main"
     description: flutter
diff --git a/lib/authentification/authentification_qrcode/pubspec.lock b/lib/authentification/authentification_qrcode/pubspec.lock
index fb638e7d3..69c02aae7 100644
--- a/lib/authentification/authentification_qrcode/pubspec.lock
+++ b/lib/authentification/authentification_qrcode/pubspec.lock
@@ -189,7 +189,7 @@ packages:
       name: fast_rsa
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "3.4.7"
   ffi:
     dependency: transitive
     description:
@@ -280,35 +280,42 @@ packages:
       name: firebase_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
+    version: "1.17.0"
   firebase_core_platform_interface:
     dependency: transitive
     description:
       name: firebase_core_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.1"
+    version: "4.4.0"
   firebase_core_web:
     dependency: transitive
     description:
       name: firebase_core_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.6.4"
   firebase_crashlytics:
     dependency: transitive
     description:
       name: firebase_crashlytics
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.8.0"
   firebase_crashlytics_platform_interface:
     dependency: transitive
     description:
       name: firebase_crashlytics_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "3.2.6"
+  flat_buffers:
+    dependency: transitive
+    description:
+      name: flat_buffers
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.5"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -724,5 +731,5 @@ packages:
     source: hosted
     version: "0.2.0"
 sdks:
-  dart: ">=2.14.0 <3.0.0"
+  dart: ">=2.16.0 <3.0.0"
   flutter: ">=2.0.0"
diff --git a/lib/authentification/authentification_qrcode/pubspec.yaml b/lib/authentification/authentification_qrcode/pubspec.yaml
index 03146f721..e0d365f88 100644
--- a/lib/authentification/authentification_qrcode/pubspec.yaml
+++ b/lib/authentification/authentification_qrcode/pubspec.yaml
@@ -32,7 +32,7 @@ dependencies:
   util:
     path: ../../util
   cloud_firestore: any
-  fast_rsa: ^3.1.0
+  fast_rsa: ^3.4.7
   firebase_auth: any
   rxdart: ^0.27.1