diff --git a/Cargo.lock b/Cargo.lock
index 9b774800435f92c9719029565386cbbc2ee99a9d..eef794e8f381f98c3bdf19da960847639dd1a7a6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1430,18 +1430,18 @@ dependencies = [
 
 [[package]]
 name = "ink_allocator"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "156d1399accf10640ba7e712a4c5b68b938b57aae14f4698ed9a43b113bdde11"
+checksum = "abe6a609d6c6cd84dd091419f672a5ed98504a111211491d7024014244782369"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "ink_engine"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b3d2da83b1a6a121fc6a1d7d9b49a3273a3b9663e0ed3d486c6940890f6f718"
+checksum = "bdedf68966ab265e469e99ae6fe72f6f421ca5e845578cd603ba38309a60823c"
 dependencies = [
  "blake2",
  "derive_more",
@@ -1454,9 +1454,9 @@ dependencies = [
 
 [[package]]
 name = "ink_env"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5d465fe08377a1d92063ff6b3fa222ab337001bc70de1941884dbc8d7a7e599"
+checksum = "43679bbf0e47f7a3a654c64fac0a206a673cd19d8a88db110a779519cbbc69e4"
 dependencies = [
  "arrayref",
  "blake2",
@@ -1555,9 +1555,9 @@ dependencies = [
 
 [[package]]
 name = "ink_metadata"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fbe60facb61034f78367fc30dc56bd5e385487ce60aefd0b1727e6b680446dc"
+checksum = "f93ad130f7a2645f22a6106b87bc9dd0e512f110b4e98da6960e4fc3d4daa766"
 dependencies = [
  "derive_more",
  "impl-serde",
@@ -1569,18 +1569,18 @@ dependencies = [
 
 [[package]]
 name = "ink_prelude"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4917e51ffd6374c7be1cb030e89607a7b9384f331d47bfa7589750ff8f27fd7f"
+checksum = "90a9133adeaa0d07bb1f29b9d4a0db6f0399e34ff63d5c9f1c008cde54f4db24"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "ink_primitives"
-version = "3.0.1"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1793c77ab7354147a4a0de3e0a77a31a29bf6fbd5f97192b8202c3ce2587699"
+checksum = "49a45f65f373fa1a2d91b4293bb4dcf5858b5505d0aaa800b19d6fcd5b36f100"
 dependencies = [
  "cfg-if",
  "ink_prelude",
diff --git a/Cargo.toml b/Cargo.toml
index d03798db4dd70354309202ea69a2e66b7ad5ca81..52470b88c81da227a209f0fd27cf319bb155de51 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ regex = "1.5.5"
 # dependencies for extrinsics (deploying and calling a contract)
 async-std = { version = "1.11.0", features = ["attributes", "tokio1"] }
 ink_metadata = { version = "3.0", features = ["derive"] }
-ink_env = "3.0"
+ink_env = "3.1"
 scale-info = { version = "2.1.2", default-features = false, features = ["derive"] }
 sp-core = "6.0.0"
 sp-runtime = "6.0.0"