diff --git a/Dockerfile b/Dockerfile
index d6389d90..5426b85a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # BUILD IMAGE ---------------------------------------------------------
 
-FROM rust:1.78.0-slim-bullseye AS builder
+FROM rust:1.79.0-slim-bullseye AS builder
 
 WORKDIR /nomos
 COPY . . 
diff --git a/ci/Dockerfile b/ci/Dockerfile
index 289b6a58..d72b226a 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76.0-slim-bullseye
+FROM rust:1.79.0-slim-bullseye
 
 LABEL maintainer="augustinas@status.im" \
       source="https://github.com/logos-co/nomos-node" \
diff --git a/shell.nix b/shell.nix
index bbf2fd59..1bf63a11 100644
--- a/shell.nix
+++ b/shell.nix
@@ -6,7 +6,7 @@
     overlays = [
       (import (fetchGit {
         url = "https://github.com/oxalica/rust-overlay.git";
-        rev = "0e031ddb3f5a339dc6eda93d271ae43618b14eec";
+        rev = "419e7fae2731f41dd9b3e34dfe8802be68558b92";
       }))
     ];
    }
@@ -17,7 +17,7 @@ pkgs.mkShell {
 
   buildInputs = with pkgs; [
     pkg-config
-    rust-bin.stable."1.76.0".default
+    rust-bin.stable."1.79.0".default
     clang_14
     llvmPackages_14.libclang
     openssl
diff --git a/testnet/Dockerfile b/testnet/Dockerfile
index 90e287d3..cbb9ac17 100644
--- a/testnet/Dockerfile
+++ b/testnet/Dockerfile
@@ -1,6 +1,6 @@
 # BUILD IMAGE ---------------------------------------------------------
 
-FROM rust:1.78.0-slim-bullseye AS builder
+FROM rust:1.79.0-slim-bullseye AS builder
 
 WORKDIR /nomos
 COPY . . 
diff --git a/tests/src/nodes/nomos.rs b/tests/src/nodes/nomos.rs
index c9303d4d..06816afd 100644
--- a/tests/src/nodes/nomos.rs
+++ b/tests/src/nodes/nomos.rs
@@ -250,12 +250,12 @@ impl Node for NomosNode {
             chain_start_time: OffsetDateTime::now_utc(),
         };
 
-        #[allow(unused_mut)]
+        #[allow(unused_mut, unused_variables)]
         let mut configs = ids
             .into_iter()
             .zip(coins)
             .enumerate()
-            .map(|(_i, (da_id, coin))| {
+            .map(|(i, (da_id, coin))| {
                 create_node_config(
                     da_id,
                     genesis_state.clone(),
@@ -265,7 +265,7 @@ impl Node for NomosNode {
                     #[cfg(feature = "mixnet")]
                     MixnetConfig {
                         mixclient: mixclient_config.clone(),
-                        mixnode: mixnode_configs[_i].clone(),
+                        mixnode: mixnode_configs[i].clone(),
                     },
                 )
             })