diff --git a/content/blog/1d-collisions/index.md b/content/blog/1d-collisions/index.md
index ad7384f..c6c272a 100644
--- a/content/blog/1d-collisions/index.md
+++ b/content/blog/1d-collisions/index.md
@@ -1,4 +1,4 @@
-# Elastic Collisions (One Dimension) 
+# Elastic Collisions (One Dimensional) 
 
 ## 1. Introduction