diff --git a/Cargo.lock b/Cargo.lock
index e49a18065..5c4641050 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -246,7 +246,7 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1374191e2dd25f9ae02e3aa95041ed5d747fc77b3c102b49fe2dd9a8117a6244"
 dependencies = [
- "num-bigint 0.2.6",
+ "num-bigint",
  "num-integer",
  "num-traits",
 ]
@@ -1397,17 +1397,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "num-bigint"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7f3fc75e3697059fb1bc465e3d8cca6cf92f56854f201158b3f9c77d5a3cfa0"
-dependencies = [
- "autocfg 1.0.0",
- "num-integer",
- "num-traits",
-]
-
 [[package]]
 name = "num-bigint-dig"
 version = "0.6.0"
@@ -2140,7 +2129,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b25ecba7165254f0c97d6c22a64b1122a03634b18d20a34daf21e18f892e618"
 dependencies = [
  "chrono",
- "num-bigint 0.2.6",
+ "num-bigint",
  "num-traits",
 ]
 
@@ -2294,7 +2283,7 @@ dependencies = [
  "log",
  "md-5",
  "memchr",
- "num-bigint 0.3.0",
+ "num-bigint",
  "once_cell",
  "parking_lot 0.10.2",
  "percent-encoding 2.1.0",
diff --git a/sqlx-core/Cargo.toml b/sqlx-core/Cargo.toml
index 7cf518539..0a5a692f2 100644
--- a/sqlx-core/Cargo.toml
+++ b/sqlx-core/Cargo.toml
@@ -64,7 +64,7 @@ libsqlite3-sys = { version = "0.18.0", optional = true, default-features = false
 log = { version = "0.4.8", default-features = false }
 md-5 = { version = "0.9.0", default-features = false, optional = true }
 memchr = { version = "2.3.3", default-features = false }
-num-bigint = { version = "0.3.0", default-features = false, optional = true, features = [ "std" ] }
+num-bigint = { version = "0.2.0", default-features = false, optional = true, features = [ "std" ] }
 once_cell = "1.4.0"
 percent-encoding = "2.1.0"
 parking_lot = "0.10.2"