diff --git a/Cargo.toml b/Cargo.toml
index 44fc33b..e4ff9c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,12 +16,12 @@ exclude = [".gitignore", ".github"]
 
 [dependencies]
 serde = "1.0, <= 1.0.156"
-magnus = "0.5"
-rb-sys = "0.9, <= 0.9.71"
-rb-sys-build = "0.9, <= 0.9.71"
+magnus = "0.6.2"
+rb-sys = "0.9, <= 0.9.81"
+rb-sys-build = "0.9, <= 0.9.81"
 tap = "1.0"
 
 [dev-dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_bytes = "0.11"
-magnus = { version = "0.5", features = ["embed"] }
+magnus = { version = "0.6.2", features = ["embed"] }
diff --git a/src/de/deserializer.rs b/src/de/deserializer.rs
index 590f0bf..5e44625 100644
--- a/src/de/deserializer.rs
+++ b/src/de/deserializer.rs
@@ -1,8 +1,9 @@
 use magnus::{
     exception,
-    value::{Qfalse, Qtrue},
+    value::{qnil, Qfalse, Qtrue, ReprValue},
     Fixnum, Float, RArray, RBignum, RHash, RString, Symbol, Value,
 };
+
 use serde::forward_to_deserialize_any;
 
 use super::{ArrayDeserializer, EnumDeserializer, HashDeserializer};
@@ -124,7 +125,7 @@ impl<'i> serde::Deserializer<'i> for Deserializer {
         if let Some(variant) = RString::from_value(self.value) {
             return visitor.visit_enum(EnumDeserializer::new(
                 variant.to_string()?,
-                Value::default(),
+                qnil().as_value(),
             ));
         }
 
@@ -132,7 +133,7 @@ impl<'i> serde::Deserializer<'i> for Deserializer {
             if hash.len() == 1 {
                 let keys: RArray = hash.funcall("keys", ())?;
                 let key: String = keys.entry(0)?;
-                let value = hash.get(key.as_str()).unwrap_or_default();
+                let value = hash.get(key.as_str()).unwrap_or_else(|| qnil().as_value());
 
                 return visitor.visit_enum(EnumDeserializer::new(key, value));
             } else {
diff --git a/src/de/hash_deserializer.rs b/src/de/hash_deserializer.rs
index be90b70..d8ac607 100644
--- a/src/de/hash_deserializer.rs
+++ b/src/de/hash_deserializer.rs
@@ -1,6 +1,6 @@
 use super::{array_enumerator::ArrayEnumerator, Deserializer};
 use crate::error::Error;
-use magnus::{exception, RHash};
+use magnus::{exception, value::ReprValue, RHash};
 use serde::de::{DeserializeSeed, MapAccess};
 use std::iter::Peekable;
 
diff --git a/src/de/variant_deserializer.rs b/src/de/variant_deserializer.rs
index c690de0..d2631d0 100644
--- a/src/de/variant_deserializer.rs
+++ b/src/de/variant_deserializer.rs
@@ -1,6 +1,6 @@
 use super::{ArrayDeserializer, Deserializer, HashDeserializer};
 use crate::error::Error;
-use magnus::{RArray, RHash, Value};
+use magnus::{value::ReprValue, RArray, RHash, Value};
 use serde::de::{DeserializeSeed, Unexpected, VariantAccess};
 
 pub struct VariantDeserializer {
diff --git a/src/ser/enums.rs b/src/ser/enums.rs
index 469d0bb..106adcc 100644
--- a/src/ser/enums.rs
+++ b/src/ser/enums.rs
@@ -1,12 +1,11 @@
 use crate::error::Error;
-use magnus::{RHash, Value};
-use std::ops::Deref;
+use magnus::{IntoValue, RHash, Value};
 
 pub fn nest<Data>(variant: &'static str, data: Data) -> Result<Value, Error>
 where
-    Data: Deref<Target = Value>,
+    Data: IntoValue,
 {
     let hash = RHash::new();
-    hash.aset(variant, *data)?;
-    Ok(*hash)
+    hash.aset(variant, data)?;
+    Ok(hash.into_value())
 }
diff --git a/src/ser/map_serializer.rs b/src/ser/map_serializer.rs
index b395382..17cebaa 100644
--- a/src/ser/map_serializer.rs
+++ b/src/ser/map_serializer.rs
@@ -1,6 +1,9 @@
 use super::Serializer;
 use crate::error::Error;
-use magnus::{RHash, Value};
+use magnus::{
+    value::{qnil, ReprValue},
+    IntoValue, RHash, Value,
+};
 use serde::{ser::SerializeMap, Serialize};
 
 pub struct MapSerializer {
@@ -12,7 +15,7 @@ impl MapSerializer {
     pub fn new(hash: RHash) -> MapSerializer {
         MapSerializer {
             hash,
-            key: Value::default(),
+            key: qnil().as_value(),
         }
     }
 }
@@ -39,6 +42,6 @@ impl SerializeMap for MapSerializer {
     }
 
     fn end(self) -> Result<Self::Ok, Self::Error> {
-        Ok(*self.hash)
+        Ok(self.hash.into_value())
     }
 }
diff --git a/src/ser/mod.rs b/src/ser/mod.rs
index b3ff2cb..3e22732 100644
--- a/src/ser/mod.rs
+++ b/src/ser/mod.rs
@@ -400,8 +400,5 @@ where
     Input: Serialize + ?Sized,
     Output: TryConvert,
 {
-    input
-        .serialize(Serializer)?
-        .try_convert()
-        .map_err(Into::into)
+    TryConvert::try_convert(input.serialize(Serializer)?).map_err(Into::into)
 }
diff --git a/src/ser/seq_serializer.rs b/src/ser/seq_serializer.rs
index 03d2a48..5ef9d1c 100644
--- a/src/ser/seq_serializer.rs
+++ b/src/ser/seq_serializer.rs
@@ -1,6 +1,6 @@
 use super::Serializer;
 use crate::error::Error;
-use magnus::{RArray, Value};
+use magnus::{IntoValue, RArray, Value};
 use serde::{
     ser::{SerializeSeq, SerializeTuple, SerializeTupleStruct},
     Serialize,
@@ -30,7 +30,7 @@ impl SerializeSeq for SeqSerializer {
     }
 
     fn end(self) -> Result<Self::Ok, self::Error> {
-        Ok(*self.array)
+        Ok(self.array.into_value())
     }
 }
 
diff --git a/src/ser/serializer.rs b/src/ser/serializer.rs
index 6338d21..3cbeadb 100644
--- a/src/ser/serializer.rs
+++ b/src/ser/serializer.rs
@@ -1,4 +1,4 @@
-use magnus::{RArray, RHash, RString, Value};
+use magnus::{IntoValue, RArray, RHash, RString, Value};
 use serde::Serialize;
 
 use super::{
@@ -22,63 +22,63 @@ impl serde::Serializer for Serializer {
     type SerializeStructVariant = StructVariantSerializer;
 
     fn serialize_bool(self, value: bool) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_i8(self, value: i8) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_i16(self, value: i16) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_i32(self, value: i32) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_i64(self, value: i64) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_u8(self, value: u8) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_u16(self, value: u16) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_u32(self, value: u32) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_u64(self, value: u64) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_f32(self, value: f32) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_f64(self, value: f64) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_char(self, value: char) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_str(self, value: &str) -> Result<Self::Ok, Self::Error> {
-        Ok(value.into())
+        Ok(value.into_value())
     }
 
     fn serialize_bytes(self, value: &[u8]) -> Result<Self::Ok, Self::Error> {
-        Ok(*RString::from_slice(value))
+        Ok(RString::from_slice(value).into_value())
     }
 
     fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
-        Ok(().into())
+        Ok(().into_value())
     }
 
     fn serialize_some<Value>(self, value: &Value) -> Result<Self::Ok, Self::Error>
@@ -89,11 +89,11 @@ impl serde::Serializer for Serializer {
     }
 
     fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
-        Ok(().into())
+        Ok(().into_value())
     }
 
     fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok, Self::Error> {
-        Ok(().into())
+        Ok(().into_value())
     }
 
     fn serialize_unit_variant(
@@ -102,7 +102,7 @@ impl serde::Serializer for Serializer {
         _index: u32,
         variant: &'static str,
     ) -> Result<Self::Ok, Self::Error> {
-        Ok(variant.into())
+        Ok(variant.into_value())
     }
 
     fn serialize_newtype_struct<Value>(
@@ -126,7 +126,7 @@ impl serde::Serializer for Serializer {
     where
         Value: Serialize + ?Sized,
     {
-        nest(variant, &value.serialize(self)?)
+        nest(variant, value.serialize(self)?)
     }
 
     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
diff --git a/src/ser/struct_serializer.rs b/src/ser/struct_serializer.rs
index 2aaf126..9fddaee 100644
--- a/src/ser/struct_serializer.rs
+++ b/src/ser/struct_serializer.rs
@@ -1,6 +1,6 @@
 use super::Serializer;
 use crate::error::Error;
-use magnus::{RHash, Symbol, Value};
+use magnus::{IntoValue, RHash, Symbol, Value};
 use serde::{ser::SerializeStruct, Serialize};
 
 pub struct StructSerializer {
@@ -31,6 +31,6 @@ impl SerializeStruct for StructSerializer {
     }
 
     fn end(self) -> Result<Self::Ok, Self::Error> {
-        Ok(*self.hash)
+        Ok(self.hash.into_value())
     }
 }