diff --git a/isa/48/03.md b/isa/48/03.md
index 6ac0f798c..926960efa 100644
--- a/isa/48/03.md
+++ b/isa/48/03.md
@@ -1,3 +1,3 @@
-# What did Yahweh do, knowing that Israel was obsinate?
+# What did Yahweh do, knowing that Israel was obstinate?
 
 He declared things from long ago and made them known, he suddenly did them and they came to pass. 
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