diff --git a/index.html b/index.html
index 755533c0..9d8c9538 100644
--- a/index.html
+++ b/index.html
@@ -8078,7 +8078,7 @@
     <script src="modules/heightmap-generator.js?v=1.99.00"></script>
     <script src="modules/features.js?v=1.104.0"></script>
     <script src="modules/ocean-layers.js?v=1.104.8"></script>
-    <script src="modules/river-generator.js?v=1.106.0"></script>
+    <script src="modules/river-generator.js?v=1.106.7"></script>
     <script src="modules/lakes.js?v=1.99.00"></script>
     <script src="modules/biomes.js?v=1.99.00"></script>
     <script src="modules/names-generator.js?v=1.105.11"></script>
diff --git a/modules/river-generator.js b/modules/river-generator.js
index 9e1f15eb..254e1af8 100644
--- a/modules/river-generator.js
+++ b/modules/river-generator.js
@@ -196,7 +196,7 @@ window.Rivers = (function () {
             flux: discharge,
             pointIndex: meanderedPoints.length,
             widthFactor,
-            sourceWidth
+            startingWidth: sourceWidth
           })
         );
 
@@ -387,13 +387,12 @@ window.Rivers = (function () {
   const LENGTH_FACTOR = 200;
   const LENGTH_STEP_WIDTH = 1 / LENGTH_FACTOR;
   const LENGTH_PROGRESSION = [1, 1, 2, 3, 5, 8, 13, 21, 34].map(n => n / LENGTH_FACTOR);
-  const MAX_PROGRESSION = last(LENGTH_PROGRESSION);
 
   const getOffset = ({flux, pointIndex, widthFactor, startingWidth}) => {
     if (pointIndex === 0) return startingWidth;
 
     const fluxWidth = Math.min(flux ** 0.7 / FLUX_FACTOR, MAX_FLUX_WIDTH);
-    const lengthWidth = pointIndex * LENGTH_STEP_WIDTH + (LENGTH_PROGRESSION[pointIndex] || MAX_PROGRESSION);
+    const lengthWidth = pointIndex * LENGTH_STEP_WIDTH + (LENGTH_PROGRESSION[pointIndex] || LENGTH_PROGRESSION.at(-1));
     return widthFactor * (lengthWidth + fluxWidth) + startingWidth;
   };
 
diff --git a/versioning.js b/versioning.js
index 998a7c19..e12cea06 100644
--- a/versioning.js
+++ b/versioning.js
@@ -13,7 +13,7 @@
  * Example: 1.102.2 -> Major version 1, Minor version 102, Patch version 2
  */
 
-const VERSION = "1.106.6";
+const VERSION = "1.106.7";
 if (parseMapVersion(VERSION) !== VERSION) alert("versioning.js: Invalid format or parsing function");
 
 {