4 files changed, 4 insertions, 4 deletions
diff --git a/src/file/format/json.rs b/src/file/format/json.rs
index ed6c787..ead99f8 100644
--- a/src/file/format/json.rs
+++ b/src/file/format/json.rs
@@ -4,7 +4,7 @@ use std::collections::HashMap;
 use std::error::Error;
 use value::{Value, ValueKind};
 
-pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error>> {
+pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
     // Parse a JSON object value from the text
     // TODO: Have a proper error fire if the root of a file is ever not a Table
     let value = from_json_value(uri, &serde_json::from_str(text)?);
diff --git a/src/file/format/mod.rs b/src/file/format/mod.rs
index b3cf279..5aa1acb 100644
--- a/src/file/format/mod.rs
+++ b/src/file/format/mod.rs
@@ -66,7 +66,7 @@ impl FileFormat {
     pub fn parse(&self,
                  uri: Option<&String>,
                  text: &str)
-                 -> Result<HashMap<String, Value>, Box<Error>> {
+                 -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
         match *self {
             #[cfg(feature = "toml")]
             FileFormat::Toml => toml::parse(uri, text),
diff --git a/src/file/format/toml.rs b/src/file/format/toml.rs
index cecad75..4307e48 100644
--- a/src/file/format/toml.rs
+++ b/src/file/format/toml.rs
@@ -4,7 +4,7 @@ use std::collections::{HashMap, BTreeMap};
 use std::error::Error;
 use value::{Value, ValueKind};
 
-pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error>> {
+pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
     // Parse a TOML value from the provided text
     // TODO: Have a proper error fire if the root of a file is ever not a Table
     let value = from_toml_value(uri, &toml::from_str(text)?);
diff --git a/src/file/format/yaml.rs b/src/file/format/yaml.rs
index 4040ea6..3ed1356 100644
--- a/src/file/format/yaml.rs
+++ b/src/file/format/yaml.rs
@@ -6,7 +6,7 @@ use std::collections::{BTreeMap, HashMap};
 use std::mem;
 use value::{Value, ValueKind};
 
-pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error>> {
+pub fn parse(uri: Option<&String>, text: &str) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
     // Parse a YAML object from file
     let mut docs = yaml::YamlLoader::load_from_str(text)?;
     let root = match docs.len() {