diff --git a/snapshots/input/basic-project/pubspec.yaml b/snapshots/input/basic-project/pubspec.yaml
index 5b2fdcb..6af1a5e 100644
--- a/snapshots/input/basic-project/pubspec.yaml
+++ b/snapshots/input/basic-project/pubspec.yaml
@@ -2,7 +2,7 @@ name: dart_test
 version: 1.0.0
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: '>=2.19.0 <3.0.0'
 
 dependencies:
   test: ^1.24.3
\ No newline at end of file
diff --git a/snapshots/input/diagnostics/pubspec.yaml b/snapshots/input/diagnostics/pubspec.yaml
index ce96a96..2a7039f 100644
--- a/snapshots/input/diagnostics/pubspec.yaml
+++ b/snapshots/input/diagnostics/pubspec.yaml
@@ -2,6 +2,6 @@ name: dart_test_diagnostics
 version: 1.0.0
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: '>=2.19.0 <3.0.0'
 dependencies:
   lints: ^2.0.1
diff --git a/snapshots/input/staging-project/pubspec.yaml b/snapshots/input/staging-project/pubspec.yaml
index 0137232..a15a94b 100644
--- a/snapshots/input/staging-project/pubspec.yaml
+++ b/snapshots/input/staging-project/pubspec.yaml
@@ -2,4 +2,4 @@ name: dart_test
 version: 1.0.0
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: '>=2.19.0 <3.0.0'