diff --git a/scripts/test.sh b/scripts/test.sh
index f51048d8..2fe0aa64 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -2,28 +2,32 @@
 
 set -e
 
-crate="$1"
-
-echo "Testing crate: $crate..."
-
-if [[ "$crate" == "utoipa" ]]; then
-    cargo test -p utoipa --features openapi_extensions,preserve_order,preserve_path_order,debug
-elif [[ "$crate" == "utoipa-gen" ]]; then
-    cargo test -p utoipa-gen --features utoipa/actix_extras,chrono,decimal,utoipa/uuid,uuid,utoipa/ulid,ulid,utoipa/url,url,utoipa/time,time,utoipa/repr,utoipa/smallvec,smallvec,rc_schema,utoipa/rc_schema
-
-    cargo test -p utoipa-gen --test schema_derive_test --features decimal_float
-    cargo test -p utoipa-gen --test path_derive_auto_into_responses --features auto_into_responses,utoipa/uuid,uuid
-    cargo test -p utoipa-gen --test path_derive_actix --test path_parameter_derive_actix --features actix_extras,utoipa/uuid,uuid
-    cargo test -p utoipa-gen --test path_derive_auto_into_responses_actix --features actix_extras,utoipa/auto_into_responses,utoipa/uuid,uuid
-
-    cargo test -p utoipa-gen --test path_derive_rocket --features rocket_extras
-
-    cargo test -p utoipa-gen --test path_derive_axum_test --features axum_extras
-    cargo test -p utoipa-gen --test path_derive_auto_into_responses_axum --features axum_extras,utoipa/auto_into_responses
-elif [[ "$crate" == "utoipa-swagger-ui" ]]; then
-    cargo test -p utoipa-swagger-ui --features actix-web,rocket,axum
-elif [[ "$crate" == "utoipa-redoc" ]]; then
-    cargo test -p utoipa-redoc --features actix-web,rocket,axum
-elif [[ "$crate" == "utoipa-rapidoc" ]]; then
-    cargo test -p utoipa-rapidoc --features actix-web,rocket,axum
-fi
+: "${CARGO:=cargo}"
+
+crates="${1:-utoipa utoipa-gen utoipa-swagger-ui utoipa-redoc utoipa-rapidoc}"
+
+for crate in $crates; do
+    echo "Testing crate: $crate..."
+
+    if [[ "$crate" == "utoipa" ]]; then
+        $CARGO test -p utoipa --features openapi_extensions,preserve_order,preserve_path_order,debug
+    elif [[ "$crate" == "utoipa-gen" ]]; then
+        $CARGO test -p utoipa-gen --features utoipa/actix_extras,chrono,decimal,utoipa/uuid,uuid,utoipa/ulid,ulid,utoipa/url,url,utoipa/time,time,utoipa/repr,utoipa/smallvec,smallvec,rc_schema,utoipa/rc_schema
+
+        $CARGO test -p utoipa-gen --test schema_derive_test --features decimal_float
+        $CARGO test -p utoipa-gen --test path_derive_auto_into_responses --features auto_into_responses,utoipa/uuid,uuid
+        $CARGO test -p utoipa-gen --test path_derive_actix --test path_parameter_derive_actix --features actix_extras,utoipa/uuid,uuid
+        $CARGO test -p utoipa-gen --test path_derive_auto_into_responses_actix --features actix_extras,utoipa/auto_into_responses,utoipa/uuid,uuid
+
+        $CARGO test -p utoipa-gen --test path_derive_rocket --features rocket_extras
+
+        $CARGO test -p utoipa-gen --test path_derive_axum_test --features axum_extras
+        $CARGO test -p utoipa-gen --test path_derive_auto_into_responses_axum --features axum_extras,utoipa/auto_into_responses
+    elif [[ "$crate" == "utoipa-swagger-ui" ]]; then
+        $CARGO test -p utoipa-swagger-ui --features actix-web,rocket,axum
+    elif [[ "$crate" == "utoipa-redoc" ]]; then
+        $CARGO test -p utoipa-redoc --features actix-web,rocket,axum
+    elif [[ "$crate" == "utoipa-rapidoc" ]]; then
+        $CARGO test -p utoipa-rapidoc --features actix-web,rocket,axum
+    fi
+done
diff --git a/utoipa/src/openapi/schema.rs b/utoipa/src/openapi/schema.rs
index 573a24c6..c8e5ccbc 100644
--- a/utoipa/src/openapi/schema.rs
+++ b/utoipa/src/openapi/schema.rs
@@ -1031,6 +1031,12 @@ impl From<ObjectBuilder> for AdditionalProperties<Schema> {
     }
 }
 
+impl From<ArrayBuilder> for AdditionalProperties<Schema> {
+    fn from(value: ArrayBuilder) -> Self {
+        Self::RefOr(RefOr::T(Schema::Array(value.build())))
+    }
+}
+
 impl From<Ref> for AdditionalProperties<Schema> {
     fn from(value: Ref) -> Self {
         Self::RefOr(RefOr::Ref(value))
@@ -1615,6 +1621,24 @@ mod tests {
             })
         );
 
+        let json_value = ObjectBuilder::new()
+            .additional_properties(Some(
+                ArrayBuilder::new().items(ObjectBuilder::new().schema_type(SchemaType::Number)),
+            ))
+            .build();
+        assert_json_eq!(
+            json_value,
+            json!({
+                "type": "object",
+                "additionalProperties": {
+                    "items": {
+                        "type": "number",
+                    },
+                    "type": "array",
+                }
+            })
+        );
+
         let json_value = ObjectBuilder::new()
             .additional_properties(Some(Ref::from_schema_name("ComplexModel")))
             .build();