diff --git a/Cargo.toml b/Cargo.toml
index c14d56af12b..1803bea47ec 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ homepage = "https://github.com/jorgecarleitao/arrow2"
 repository = "https://github.com/jorgecarleitao/arrow2"
 authors = ["Jorge C. Leitao <jorgecarleitao@gmail.com>", "Apache Arrow <dev@arrow.apache.org>"]
 keywords = [ "arrow", "analytics" ]
-edition = "2018"
+edition = "2021"
 exclude = ["testing/"]
 
 [lib]
diff --git a/arrow-parquet-integration-testing/Cargo.toml b/arrow-parquet-integration-testing/Cargo.toml
index 5e8e3454ce8..347818280a1 100644
--- a/arrow-parquet-integration-testing/Cargo.toml
+++ b/arrow-parquet-integration-testing/Cargo.toml
@@ -2,7 +2,7 @@
 name = "arrow-parquet-integration-testing"
 version = "0.1.0"
 authors = ["Jorge C. Leitao <jorgecarleitao@gmail.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 clap = "^2.33"
diff --git a/arrow-pyarrow-integration-testing/Cargo.toml b/arrow-pyarrow-integration-testing/Cargo.toml
index 551868e30ea..009dc24d7e8 100644
--- a/arrow-pyarrow-integration-testing/Cargo.toml
+++ b/arrow-pyarrow-integration-testing/Cargo.toml
@@ -20,7 +20,7 @@ name = "arrow-pyarrow-integration-testing"
 version = "0.0.0"
 authors = ["Jorge C. Leitao <jorgecarleitao@gmail.com>", "Apache Arrow <dev@arrow.apache.org>"]
 license = "Apache-2.0"
-edition = "2018"
+edition = "2021"
 
 [lib]
 name = "arrow_pyarrow_integration_testing"
diff --git a/examples/ipc_pyarrow/Cargo.toml b/examples/ipc_pyarrow/Cargo.toml
index 47bc82181b9..b463ceaece9 100644
--- a/examples/ipc_pyarrow/Cargo.toml
+++ b/examples/ipc_pyarrow/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ipc_stream"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 arrow2 = { path = "../../", default-features = false, features = ["io_ipc"] }
diff --git a/examples/parquet_read_parallel/Cargo.toml b/examples/parquet_read_parallel/Cargo.toml
index 89eca0435d3..9a102404d70 100644
--- a/examples/parquet_read_parallel/Cargo.toml
+++ b/examples/parquet_read_parallel/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "parquet_write_parallel"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 arrow2 = { path = "../../", default-features = false, features = ["io_parquet", "io_parquet_compression"] }
diff --git a/examples/parquet_write_parallel/Cargo.toml b/examples/parquet_write_parallel/Cargo.toml
index 89eca0435d3..9a102404d70 100644
--- a/examples/parquet_write_parallel/Cargo.toml
+++ b/examples/parquet_write_parallel/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "parquet_write_parallel"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 arrow2 = { path = "../../", default-features = false, features = ["io_parquet", "io_parquet_compression"] }
diff --git a/examples/s3/Cargo.toml b/examples/s3/Cargo.toml
index 84d7b8c0216..cd9154445c7 100644
--- a/examples/s3/Cargo.toml
+++ b/examples/s3/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "s3"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 arrow2 = { path = "../../", default-features = false, features = ["io_parquet", "io_parquet_compression"] }
diff --git a/integration-testing/Cargo.toml b/integration-testing/Cargo.toml
index d96279f5a73..b2343dd15ff 100644
--- a/integration-testing/Cargo.toml
+++ b/integration-testing/Cargo.toml
@@ -21,7 +21,7 @@ description = "Binaries used in the Arrow integration tests"
 version = "0.1.0"
 authors = ["Jorge C Leitao", "Apache Arrow <dev@arrow.apache.org>"]
 license = "Apache-2.0"
-edition = "2018"
+edition = "2021"
 publish = false
 
 [features]