diff --git a/lib/src/rive_core/shapes/path.dart b/lib/src/rive_core/shapes/path.dart
index 280deaa..06d4f67 100644
--- a/lib/src/rive_core/shapes/path.dart
+++ b/lib/src/rive_core/shapes/path.dart
@@ -99,8 +99,8 @@ abstract class Path extends PathBase {
     }
     List<PathVertex> renderPoints = [];
     int pl = pts.length;
-    const arcConstant = circleConstant;
-    const double iarcConstant = 1.0 - arcConstant;
+    const double iarcConstant = 1.0 - circleConstant;
+
     PathVertex previous = isClosed ? pts[pl - 1] : null;
     for (int i = 0; i < pl; i++) {
       PathVertex point = pts[i];
diff --git a/pubspec.lock b/pubspec.lock
index 13bf620..ca477ab 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -21,7 +21,7 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety"
+    version: "1.0.0"
   charcode:
     dependency: transitive
     description:
@@ -42,7 +42,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety"
+    version: "1.14.13"
   fake_async:
     dependency: transitive
     description:
@@ -80,7 +80,7 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety"
+    version: "1.1.8"
   path:
     dependency: transitive
     description:
@@ -141,13 +141,13 @@ packages:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety"
+    version: "1.2.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety"
+    version: "2.0.8"
 sdks:
-  dart: ">=2.9.0-18.0 <2.9.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"