diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15a61af..011974e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,3 +6,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+- Wrapped CallTraceV1 into Box for better performance
+
diff --git a/crates/cairo-annotations/src/trace_data.rs b/crates/cairo-annotations/src/trace_data.rs
index 7cb5622..16c5c34 100644
--- a/crates/cairo-annotations/src/trace_data.rs
+++ b/crates/cairo-annotations/src/trace_data.rs
@@ -50,7 +50,7 @@ pub struct CasmLevelInfo {
 /// Enum representing node of a trace of a call.
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum CallTraceNode {
-    EntryPointCall(CallTraceV1),
+    EntryPointCall(Box<CallTraceV1>),
     DeployWithoutConstructor,
 }