diff --git a/Cargo.toml b/Cargo.toml
index 02f5f78..90d1d31 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,4 +27,4 @@ serde = { version = "0.9", optional = true }
 
 [dev-dependencies]
 serde_json = { version = ">=0.9.0" }
-bincode = { version = "1.0.0-alpha2", features = ["serde"], default-features = false }
+bincode = { version = "1.0.0-alpha6", features = ["serde"], default-features = false }
diff --git a/src/datetime.rs b/src/datetime.rs
index 702770a..9052b81 100644
--- a/src/datetime.rs
+++ b/src/datetime.rs
@@ -584,10 +584,10 @@ mod serde {
     fn test_serde_bincode() {
         // Bincode is relevant to test separately from JSON because
         // it is not self-describing.
-        use self::bincode::{SizeLimit, serialize, deserialize};
+        use self::bincode::{Infinite, serialize, deserialize};
 
         let dt = UTC.ymd(2014, 7, 24).and_hms(12, 34, 6);
-        let encoded = serialize(&dt, SizeLimit::Infinite).unwrap();
+        let encoded = serialize(&dt, Infinite).unwrap();
         let decoded: DateTime<UTC> = deserialize(&encoded).unwrap();
         assert_eq!(dt, decoded);
         assert_eq!(dt.offset(), decoded.offset());
diff --git a/src/naive/date.rs b/src/naive/date.rs
index 53b7686..90ee26c 100644
--- a/src/naive/date.rs
+++ b/src/naive/date.rs
@@ -1616,10 +1616,10 @@ mod serde {
     fn test_serde_bincode() {
         // Bincode is relevant to test separately from JSON because
         // it is not self-describing.
-        use self::bincode::{SizeLimit, serialize, deserialize};
+        use self::bincode::{Infinite, serialize, deserialize};
 
         let d = NaiveDate::from_ymd(2014, 7, 24);
-        let encoded = serialize(&d, SizeLimit::Infinite).unwrap();
+        let encoded = serialize(&d, Infinite).unwrap();
         let decoded: NaiveDate = deserialize(&encoded).unwrap();
         assert_eq!(d, decoded);
     }
diff --git a/src/naive/datetime.rs b/src/naive/datetime.rs
index 0839b0e..33ba752 100644
--- a/src/naive/datetime.rs
+++ b/src/naive/datetime.rs
@@ -1515,10 +1515,10 @@ mod serde {
         // Bincode is relevant to test separately from JSON because
         // it is not self-describing.
         use naive::date::NaiveDate;
-        use self::bincode::{SizeLimit, serialize, deserialize};
+        use self::bincode::{Infinite, serialize, deserialize};
 
         let dt = NaiveDate::from_ymd(2016, 7, 8).and_hms_milli(9, 10, 48, 90);
-        let encoded = serialize(&dt, SizeLimit::Infinite).unwrap();
+        let encoded = serialize(&dt, Infinite).unwrap();
         let decoded: NaiveDateTime = deserialize(&encoded).unwrap();
         assert_eq!(dt, decoded);
     }
diff --git a/src/naive/time.rs b/src/naive/time.rs
index 8019b04..a463eaf 100644
--- a/src/naive/time.rs
+++ b/src/naive/time.rs
@@ -1392,10 +1392,10 @@ mod serde {
     fn test_serde_bincode() {
         // Bincode is relevant to test separately from JSON because
         // it is not self-describing.
-        use self::bincode::{SizeLimit, serialize, deserialize};
+        use self::bincode::{Infinite, serialize, deserialize};
 
         let t = NaiveTime::from_hms_nano(3, 5, 7, 98765432);
-        let encoded = serialize(&t, SizeLimit::Infinite).unwrap();
+        let encoded = serialize(&t, Infinite).unwrap();
         let decoded: NaiveTime = deserialize(&encoded).unwrap();
         assert_eq!(t, decoded);
     }