diff --git a/CHANGELOG.md b/CHANGELOG.md
index b03a6f79..fa87cb4c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+- Bump upstream crate `bson` from `v1.2.0` to `v2.0.0-beta.1`. [#516](https://github.com/async-graphql/async-graphql/pull/516)
+
 ## [2.9.2] 2021-06-10
 
 - Allow field guards to support paths. [#536](https://github.com/async-graphql/async-graphql/issues/536)
diff --git a/Cargo.toml b/Cargo.toml
index f6a0de43..83d81502 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ multer = "2.0.0"
 tempfile = "3.2.0"
 
 # Feature optional dependencies
-bson = { version = "1.2.0", optional = true }
+bson = { version = "2.0.0-beta.1", optional = true, features = ["chrono-0_4"] }
 chrono = { version = "0.4.19", optional = true }
 chrono-tz = { version = "0.5.3", optional = true }
 log = { version = "0.4.14", optional = true }
diff --git a/src/types/external/bson.rs b/src/types/external/bson.rs
index 7c8b9093..228cf52c 100644
--- a/src/types/external/bson.rs
+++ b/src/types/external/bson.rs
@@ -10,7 +10,7 @@ use crate::{InputValueError, InputValueResult, Scalar, ScalarType, Value};
 impl ScalarType for ObjectId {
     fn parse(value: Value) -> InputValueResult<Self> {
         match value {
-            Value::String(s) => Ok(ObjectId::with_string(&s)?),
+            Value::String(s) => Ok(ObjectId::parse_str(&s)?),
             _ => Err(InputValueError::expected_type(value)),
         }
     }
@@ -26,10 +26,10 @@ impl ScalarType for UtcDateTime {
     fn parse(value: Value) -> InputValueResult<Self> {
         <DateTime<Utc>>::parse(value)
             .map_err(InputValueError::propagate)
-            .map(UtcDateTime::from)
+            .map(UtcDateTime::from_chrono)
     }
 
     fn to_value(&self) -> Value {
-        (**self).to_value()
+        self.to_chrono().to_value()
     }
 }
diff --git a/src/types/id.rs b/src/types/id.rs
index 5f3ea611..f83150cb 100644
--- a/src/types/id.rs
+++ b/src/types/id.rs
@@ -71,7 +71,7 @@ impl TryFrom<ID> for ObjectId {
     type Error = oid::Error;
 
     fn try_from(id: ID) -> std::result::Result<Self, oid::Error> {
-        ObjectId::with_string(&id.0)
+        ObjectId::parse_str(&id.0)
     }
 }