diff --git a/Cargo.lock b/Cargo.lock
index 9b09a27..0318cb2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -47,6 +47,12 @@ version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.0"
@@ -62,6 +68,12 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "hashbrown"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+
 [[package]]
 name = "idna"
 version = "0.2.3"
@@ -96,7 +108,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.12.3",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.5",
  "serde",
 ]
 
@@ -156,7 +178,7 @@ version = "0.2.1"
 dependencies = [
  "cfg-if",
  "doc-comment",
- "indexmap",
+ "indexmap 2.5.0",
  "insta",
  "lazy_static",
  "regex",
@@ -271,7 +293,7 @@ version = "1.0.96"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
 dependencies = [
- "indexmap",
+ "indexmap 1.9.3",
  "itoa",
  "ryu",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index e0b6c90..6f1db39 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ authors = ["Ifiok Jr. <ifiokotung@gmail.com>"]
 categories = ["encoding", "config"]
 documentation = "https://docs.rs/package_json_schema"
 edition = "2021"
+rust-version = "1.63"
 homepage = "https://github.com/ifiokjr/package_json_schema"
 include = ["src/**/*.rs", "Cargo.toml", "readme.md", "license"]
 keywords = ["schema", "package", "npm", "node", "json"]
@@ -19,7 +20,7 @@ crate-type = ["lib"]
 [dependencies]
 cfg-if = "1"
 doc-comment = "0.3"
-indexmap = { version = "1", features = ["serde-1"] }
+indexmap = { version = "2", features = ["serde"] }
 lazy_static = "1"
 regex = "1"
 semver = "1"