diff --git a/Cargo.lock b/Cargo.lock
index 49f2604..b7b562f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -838,7 +838,3 @@ name = "zmij"
 version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
-
-[[patch.unused]]
-name = "boa_string"
-version = "1.0.0-dev"
diff --git a/oscars/src/alloc/mempool3/mod.rs b/oscars/src/alloc/mempool3/mod.rs
index 90a8f23..16b6f7c 100644
--- a/oscars/src/alloc/mempool3/mod.rs
+++ b/oscars/src/alloc/mempool3/mod.rs
@@ -28,7 +28,7 @@ impl From<LayoutError> for PoolAllocError {
     }
 }
 
-const SIZE_CLASSES: &[usize] = &[16, 24, 32, 48, 64, 96, 128, 192, 256, 512, 1024, 2048];
+const SIZE_CLASSES: &[usize] = &[16, 24, 32, 48, 64, 96, 128, 192, 256, 512, 1024, 2048, 4096];
 
 #[inline(always)]
 fn size_class_index_for(size: usize) -> usize {