diff --git a/Cargo.toml b/Cargo.toml
index f4754c0..6118ef7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ark-circom"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 description = "Arkworks bindings to Circom's R1CS, for Groth16 Proof and Witness generation in Rust"
 license = "MIT OR Apache-2.0"
 
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index a36582e..d41dce5 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "stable"
-version = "1.74.0"
+version = "1.75.0"