diff --git a/pubspec.lock b/pubspec.lock
index 069372c..1fc9fa7 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.13"
+    version: "1.17.0"
   fixnum:
     dependency: "direct main"
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index f750506..80474ae 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -2,7 +2,7 @@ name: dependabot_testcase
 environment:
   sdk: '>=2.12.0 <3.0.0'
 dependencies:
-  collection: ^1.14.13 # Locked to 1.14.13, can update with no unlock.
+  collection: ^1.17.0 # Locked to 1.14.13, can update with no unlock.
   retry: ^2.0.0 # Can update with updated constraint, no further constraints.
   protobuf: 1.1.4 # Can update with updated constraint, only together with fixnum.
   fixnum: 0.10.11