diff --git a/Cargo.lock b/Cargo.lock
index 4fa3aed..0727b0d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -124,7 +124,7 @@ checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
 [[package]]
 name = "chart-js-rs"
-version = "0.0.35"
+version = "0.0.36"
 dependencies = [
  "gloo-console",
  "gloo-utils",
@@ -873,9 +873,9 @@ checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
 
 [[package]]
 name = "serde"
-version = "1.0.209"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
+checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
 dependencies = [
  "serde_derive",
 ]
@@ -893,9 +893,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.209"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
+checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 3d8c4bb..87d57a4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chart-js-rs"
-version = "0.0.35"
+version = "0.0.36"
 edition = "2021"
 authors = ["Billy Sheppard", "Luis Moreno"]
 license = "Apache-2.0"
@@ -13,7 +13,7 @@ homepage = "https://github.com/Billy-Sheppard/chart-js-rs"
 
 [dependencies]
 rust_decimal = "1.34"
-serde = { version = "1.0.189", features = ["derive"] }
+serde = { version = "1.0.210", features = ["derive"] }
 wasm-bindgen = { version = "0.2.90", features = ["serde-serialize"] }
 gloo-utils = { version = "0.2", features = ["serde"] }
 gloo-console = { version = "0.3" }
diff --git a/src/types.rs b/src/types.rs
index 942ad48..e319121 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -156,12 +156,18 @@ impl<'de> Deserialize<'de> for NumberOrDateString {
 #[derive(Debug, Clone, Default, PartialEq, Eq, PartialOrd, Ord)]
 pub struct BoolString(String);
 impl BoolString {
-    pub fn true_() -> Option<BoolString> {
+    pub fn opt_true() -> Option<BoolString> {
         BoolString("true".into()).into()
     }
-    pub fn false_() -> Option<BoolString> {
+    pub fn opt_false() -> Option<BoolString> {
         BoolString("false".into()).into()
     }
+    pub fn _true() -> BoolString {
+        BoolString("true".into())
+    }
+    pub fn _false() -> BoolString {
+        BoolString("false".into())
+    }
     pub fn is_empty(&self) -> bool {
         self.0.is_empty()
     }
@@ -976,7 +982,7 @@ pub struct DataLabels {
     pub clip: Option<bool>,
     #[serde(skip_serializing_if = "String::is_empty", default)]
     pub color: String,
-    #[serde(skip_serializing_if = "BoolString::is_empty", default)]
+    #[serde(default = "BoolString::_false")]
     pub display: BoolString,
     #[serde(skip_serializing_if = "NumberString::is_empty", default)]
     pub drawTime: NumberString,