diff --git a/postgres-shared/Cargo.toml b/postgres-shared/Cargo.toml
index 923984c3..d020aeee 100644
--- a/postgres-shared/Cargo.toml
+++ b/postgres-shared/Cargo.toml
@@ -25,6 +25,6 @@ bit-vec = { version = "0.4", optional = true }
 chrono = { version = "0.2.14", optional = true }
 eui48 = { version = "0.1", optional = true }
 rustc-serialize = { version = "0.3", optional = true }
-serde_json = { version = ">= 0.6, < 0.9", optional = true }
+serde_json = { version = ">= 0.6, < 0.10", optional = true }
 time = { version = "0.1.14", optional = true }
 uuid = { version = ">= 0.1, < 0.4", optional = true }
diff --git a/postgres-shared/src/types/serde_json.rs b/postgres-shared/src/types/serde_json.rs
index e7aba007..3a493aeb 100644
--- a/postgres-shared/src/types/serde_json.rs
+++ b/postgres-shared/src/types/serde_json.rs
@@ -34,7 +34,7 @@ impl ToSql for Value {
         if let Type::Jsonb = *ty {
             out.push(1);
         }
-        try!(write!(out, "{:?}", self));
+        try!(write!(out, "{}", self));
         Ok(IsNull::No)
     }
 
diff --git a/postgres/Cargo.toml b/postgres/Cargo.toml
index 8de7956d..b9929319 100644
--- a/postgres/Cargo.toml
+++ b/postgres/Cargo.toml
@@ -58,6 +58,6 @@ bit-vec = "0.4"
 chrono = "0.2.14"
 eui48 = "0.1"
 rustc-serialize = "0.3"
-serde_json = ">= 0.6, < 0.9"
+serde_json = ">= 0.6, < 0.10"
 time = "0.1.14"
 uuid = ">= 0.1, < 0.4"