diff --git a/.analysis_options b/.analysis_options
deleted file mode 100644
index a10d4c5..0000000
--- a/.analysis_options
+++ /dev/null
@@ -1,2 +0,0 @@
-analyzer:
-  strong-mode: true
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 68eafaa..53a700c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 1.4.1
+
+* Set max SDK version to `<3.0.0`, and adjust other dependencies.
+
 # 1.4.0
 
 * The `new SourceFile()` constructor is deprecated. This constructed a source
diff --git a/pubspec.yaml b/pubspec.yaml
index 46e3d52..1d53210 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,12 +1,16 @@
 name: source_span
-version: 1.4.0
-author: Dart Team <misc@dartlang.org>
+version: 1.4.1
+
 description: A library for identifying source spans and locations.
+author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/source_span
-dependencies:
-  charcode: '^1.0.0'
-  path: '>=1.2.0 <2.0.0'
+
 environment:
-  sdk: '>=1.8.0 <2.0.0'
+  sdk: '>=1.8.0 <3.0.0'
+
+dependencies:
+  charcode: ^1.0.0
+  path: '>=1.2.0 <2.0.0'
+
 dev_dependencies:
-  test: '>=0.12.0 <0.13.0'
+  test: '>=0.12.0 <2.0.0'
diff --git a/test/file_test.dart b/test/file_test.dart
index 3f02a8b..071f3f9 100644
--- a/test/file_test.dart
+++ b/test/file_test.dart
@@ -8,7 +8,7 @@
 main() {
   var file;
   setUp(() {
-    file = new SourceFile("""
+    file = new SourceFile.fromString("""
 foo bar baz
 whiz bang boom
 zip zap zop""", url: "foo.dart");
@@ -122,7 +122,7 @@
     });
 
     test("for span().expand() source URLs must match", () {
-      var other = new SourceFile("""
+      var other = new SourceFile.fromString("""
 foo bar baz
 whiz bang boom
 zip zap zop""", url: "bar.dart").span(10, 11);
@@ -139,11 +139,11 @@
 
   group("new SourceFile()", () {
     test("handles CRLF correctly", () {
-      expect(new SourceFile("foo\r\nbar").getLine(6), equals(1));
+      expect(new SourceFile.fromString("foo\r\nbar").getLine(6), equals(1));
     });
 
     test("handles a lone CR correctly", () {
-      expect(new SourceFile("foo\rbar").getLine(5), equals(1));
+      expect(new SourceFile.fromString("foo\rbar").getLine(5), equals(1));
     });
   });
 
diff --git a/test/highlight_test.dart b/test/highlight_test.dart
index 08d2e17..ac8334b 100644
--- a/test/highlight_test.dart
+++ b/test/highlight_test.dart
@@ -9,7 +9,7 @@
 main() {
   var file;
   setUp(() {
-    file = new SourceFile("""
+    file = new SourceFile.fromString("""
 foo bar baz
 whiz bang boom
 zip zap zop
@@ -23,7 +23,7 @@
   });
 
   test("gracefully handles a missing source URL", () {
-    var span = new SourceFile("foo bar baz").span(4, 7);
+    var span = new SourceFile.fromString("foo bar baz").span(4, 7);
     expect(span.highlight(), equals("""
 foo bar baz
     ^^^"""));
@@ -55,26 +55,29 @@
 
   test("works for a point span at the end of the file with no trailing newline",
       () {
-    file = new SourceFile("zip zap zop");
+    file = new SourceFile.fromString("zip zap zop");
     expect(file.location(11).pointSpan().highlight(), equals("""
 zip zap zop
            ^"""));
   });
 
   test("works for a point span in an empty file", () {
-    expect(new SourceFile("").location(0).pointSpan().highlight(), equals("""
+    expect(new SourceFile.fromString("").location(0).pointSpan().highlight(),
+        equals("""
 
 ^"""));
   });
 
   test("works for a single-line file without a newline", () {
-    expect(new SourceFile("foo bar").span(0, 7).highlight(), equals("""
+    expect(
+        new SourceFile.fromString("foo bar").span(0, 7).highlight(), equals("""
 foo bar
 ^^^^^^^"""));
   });
 
   test("emits tabs for tabs", () {
-    expect(new SourceFile(" \t \t\tfoo bar").span(5, 8).highlight(), equals("""
+    expect(new SourceFile.fromString(" \t \t\tfoo bar").span(5, 8).highlight(),
+        equals("""
  \t \t\tfoo bar
  \t \t\t^^^"""));
   });