diff --git a/collections.md b/collections.md
index 80ed82fde1..bbee48fb74 100644
--- a/collections.md
+++ b/collections.md
@@ -128,6 +128,7 @@ For the majority of the remaining collection documentation, we'll discuss each m
[diffAssocUsing](#method-diffassocusing)
[diffKeys](#method-diffkeys)
[doesntContain](#method-doesntcontain)
+[doesntContainStrict](#method-doesntcontainstrict)
[dot](#method-dot)
[dump](#method-dump)
[duplicates](#method-duplicates)
@@ -843,6 +844,11 @@ $collection->doesntContain('product', 'Bookcase');
The `doesntContain` method uses "loose" comparisons when checking item values, meaning a string with an integer value will be considered equal to an integer of the same value.
+
+#### `doesntContainStrict()` {.collection-method}
+
+This method has the same signature as the [doesntContain](#method-doesntContain) method; however, all values are compared using "strict" comparisons.
+
#### `dot()` {.collection-method}