diff --git a/utoipa-gen/Cargo.toml b/utoipa-gen/Cargo.toml
index 96328ac8..f19db64e 100644
--- a/utoipa-gen/Cargo.toml
+++ b/utoipa-gen/Cargo.toml
@@ -48,6 +48,7 @@ axum = { version = "0.8.0", default-features = false, features = [
 paste = "1"
 rocket = { version = "0.5", features = ["json"] }
 smallvec = { version = "1.10", features = ["serde"] }
+bigdecimal = ">= 0.0.13, < 0.5.0"
 rust_decimal = { version = "1", default-features = false }
 chrono = { version = "0.4", features = ["serde"] }
 time = { version = "0.3", features = ["serde-human-readable"] }
@@ -61,6 +62,7 @@ debug = ["syn/extra-traits"]
 actix_extras = ["regex", "syn/extra-traits"]
 chrono = []
 yaml = []
+bigdecimal = []
 decimal = []
 decimal_float = []
 rocket_extras = ["regex", "syn/extra-traits"]
diff --git a/utoipa-gen/src/schema_type.rs b/utoipa-gen/src/schema_type.rs
index e5d0b19c..d216b007 100644
--- a/utoipa-gen/src/schema_type.rs
+++ b/utoipa-gen/src/schema_type.rs
@@ -714,6 +714,11 @@ impl PrimitiveType {
                 syn::parse_quote!(String)
             }
 
+            #[cfg(feature = "bigdecimal")]
+            "BigDecimal" => {
+                syn::parse_quote!(String)
+            }
+
             #[cfg(feature = "decimal")]
             "Decimal" => {
                 syn::parse_quote!(String)
diff --git a/utoipa-gen/tests/schema_derive_test.rs b/utoipa-gen/tests/schema_derive_test.rs
index 301681ce..c19b9fb0 100644
--- a/utoipa-gen/tests/schema_derive_test.rs
+++ b/utoipa-gen/tests/schema_derive_test.rs
@@ -1947,6 +1947,25 @@ fn derive_struct_with_rust_decimal_float_with_type_override() {
     }
 }
 
+#[cfg(feature = "bigdecimal")]
+#[test]
+fn derive_struct_with_rust_bigdecimal_with_type_override() {
+    let post = api_doc! {
+        struct Post {
+            id: i32,
+            #[schema(value_type = String)]
+            rating: bigdecimal::BigDecimal,
+        }
+    };
+
+    assert_value! {post=>
+        "properties.id.type" = r#""integer""#, "Post id type"
+        "properties.id.format" = r#""int32""#, "Post id format"
+        "properties.rating.type" = r#""string""#, "Post rating type"
+        "properties.rating.format" = r#"null"#, "Post rating format"
+    }
+}
+
 #[cfg(feature = "uuid")]
 #[test]
 fn derive_struct_with_uuid_type() {
diff --git a/utoipa/Cargo.toml b/utoipa/Cargo.toml
index e913d114..72d855c1 100644
--- a/utoipa/Cargo.toml
+++ b/utoipa/Cargo.toml
@@ -35,6 +35,7 @@ actix_extras = ["utoipa-gen?/actix_extras"]
 rocket_extras = ["utoipa-gen?/rocket_extras"]
 axum_extras = ["utoipa-gen?/axum_extras"]
 chrono = ["utoipa-gen?/chrono"]
+bigdecimal = ["utoipa-gen?/bigdecimal"]
 decimal = ["utoipa-gen?/decimal"]
 decimal_float = ["utoipa-gen?/decimal_float"]
 non_strict_integers = ["utoipa-gen?/non_strict_integers"]