diff --git a/src/connector/Cargo.toml b/src/connector/Cargo.toml
index 5d74d749f929d..d230ffe4ce4c2 100644
--- a/src/connector/Cargo.toml
+++ b/src/connector/Cargo.toml
@@ -111,7 +111,7 @@ risingwave_rpc_client = { workspace = true }
 rust_decimal = "1"
 serde = { version = "1", features = ["derive", "rc"] }
 serde_derive = "1"
-serde_json = "1"
+serde_json = { version = "1", features = ["arbitrary_precision"] }
 serde_with = { version = "3", features = ["json"] }
 simd-json = "0.13.3"
 strum = "0.25"
diff --git a/src/workspace-hack/Cargo.toml b/src/workspace-hack/Cargo.toml
index 70f9c75efb9fa..14aa110056873 100644
--- a/src/workspace-hack/Cargo.toml
+++ b/src/workspace-hack/Cargo.toml
@@ -111,7 +111,7 @@ sea-orm = { version = "0.12", features = ["runtime-tokio-native-tls", "sqlx-mysq
 sea-query = { version = "0.30", default-features = false, features = ["backend-mysql", "backend-postgres", "backend-sqlite", "derive", "hashable-value", "postgres-array", "thread-safe", "with-bigdecimal", "with-chrono", "with-json", "with-rust_decimal", "with-time", "with-uuid"] }
 sea-query-binder = { version = "0.5", default-features = false, features = ["postgres-array", "runtime-tokio-native-tls", "sqlx-mysql", "sqlx-postgres", "sqlx-sqlite", "with-bigdecimal", "with-chrono", "with-json", "with-rust_decimal", "with-time", "with-uuid"] }
 serde = { version = "1", features = ["alloc", "derive", "rc"] }
-serde_json = { version = "1", features = ["alloc", "raw_value"] }
+serde_json = { version = "1", features = ["alloc", "arbitrary_precision", "raw_value"] }
 serde_with = { version = "3", features = ["json"] }
 sha1 = { version = "0.10" }
 sha2 = { version = "0.10", features = ["oid"] }
@@ -178,7 +178,7 @@ regex = { version = "1" }
 regex-automata = { version = "0.4", default-features = false, features = ["dfa", "hybrid", "meta", "nfa", "perf", "unicode"] }
 regex-syntax = { version = "0.8" }
 serde = { version = "1", features = ["alloc", "derive", "rc"] }
-serde_json = { version = "1", features = ["alloc", "raw_value"] }
+serde_json = { version = "1", features = ["alloc", "arbitrary_precision", "raw_value"] }
 syn-dff4ba8e3ae991db = { package = "syn", version = "1", features = ["extra-traits", "full", "visit", "visit-mut"] }
 syn-f595c2ba2a3f28df = { package = "syn", version = "2", features = ["extra-traits", "fold", "full", "visit", "visit-mut"] }
 time = { version = "0.3", features = ["local-offset", "macros", "serde-well-known"] }