diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..11818d9
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,16 @@
+name: Build contracts and check formatting
+on:
+  push:
+  merge_group:
+  pull_request:
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: software-mansion/setup-scarb@v1
+        with:
+          scarb-version: "2.12.2"
+      - run: scarb build
+      - run: scarb fmt --check
+      - run: scarb lint
\ No newline at end of file
diff --git a/Scarb.toml b/Scarb.toml
index e3db7b1..03620ac 100644
--- a/Scarb.toml
+++ b/Scarb.toml
@@ -6,11 +6,11 @@ edition = "2024_07"
 # See more keys and their definitions at https://docs.swmansion.com/scarb/docs/reference/manifest.html
 
 [dependencies]
-starknet = "2.11.4"
+starknet = "2.12.2"
 
 [dev-dependencies]
-snforge_std = "0.48.0"
-assert_macros = "2.11.4"
+snforge_std = "0.48.1"
+assert_macros = "2.12.2"
 
 [[target.starknet-contract]]
 sierra = true
diff --git a/src/contracts/HelloStarknet.cairo b/src/contracts/HelloStarknet.cairo
index efbac00..c2cd5b3 100644
--- a/src/contracts/HelloStarknet.cairo
+++ b/src/contracts/HelloStarknet.cairo
@@ -1,10 +1,13 @@
 /// Simple contract for managing balance.
 #[starknet::contract]
 pub mod HelloStarknet {
-    
     use cairo_bootcamp_5::interfaces::IHelloStarknet::IHelloStarknet;
-    // use starknet::storage::{StoragePointerReadAccess, StoragePathEntry, StoragePointerWriteAccess, Map };
-    use starknet::storage::{Map, StorageMapReadAccess, StorageMapWriteAccess, StoragePointerReadAccess, StoragePointerWriteAccess };
+    // use starknet::storage::{StoragePointerReadAccess, StoragePathEntry,
+    // StoragePointerWriteAccess, Map };
+    use starknet::storage::{
+        Map, StorageMapReadAccess, StorageMapWriteAccess, StoragePointerReadAccess,
+        StoragePointerWriteAccess,
+    };
     use starknet::{ContractAddress, get_caller_address};
 
     #[storage]
@@ -16,7 +19,7 @@ pub mod HelloStarknet {
     #[event]
     #[derive(Drop, starknet::Event)]
     pub enum Event {
-        Balance : BalanceIncreased,
+        Balance: BalanceIncreased,
     }
 
     #[derive(Drop, starknet::Event)]
@@ -42,11 +45,11 @@ pub mod HelloStarknet {
 
             // self.balance.write(self.balance.read() + amount);
 
-            self.emit(BalanceIncreased{caller, amount});
+            self.emit(BalanceIncreased { caller, amount });
         }
 
         fn get_balance(self: @ContractState) -> felt252 {
             self.balance.read()
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/contracts/counter.cairo b/src/contracts/counter.cairo
index 110527f..b5937b2 100644
--- a/src/contracts/counter.cairo
+++ b/src/contracts/counter.cairo
@@ -13,7 +13,7 @@ pub mod Counter {
     #[event]
     #[derive(Drop, starknet::Event)]
     pub enum Event {
-        CountUpdated : CountUpdated,
+        CountUpdated: CountUpdated,
     }
 
     #[derive(Drop, starknet::Event)]
@@ -48,4 +48,4 @@ pub mod Counter {
             self.emit(CountUpdated { old_value, new_value });
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/interfaces/ICounter.cairo b/src/interfaces/ICounter.cairo
index f1657e6..c94c544 100644
--- a/src/interfaces/ICounter.cairo
+++ b/src/interfaces/ICounter.cairo
@@ -3,4 +3,4 @@ pub trait ICounter<TContractState> {
     fn get_count(self: @TContractState) -> u32;
     fn increment(ref self: TContractState);
     fn decrement(ref self: TContractState);
-}
\ No newline at end of file
+}
diff --git a/src/interfaces/IHelloStarknet.cairo b/src/interfaces/IHelloStarknet.cairo
index 979b66e..eb81bc7 100644
--- a/src/interfaces/IHelloStarknet.cairo
+++ b/src/interfaces/IHelloStarknet.cairo
@@ -6,4 +6,4 @@ pub trait IHelloStarknet<TContractState> {
     fn increase_balance(ref self: TContractState, amount: felt252);
     /// Retrieve contract balance.
     fn get_balance(self: @TContractState) -> felt252;
-}
\ No newline at end of file
+}
diff --git a/src/lib.cairo b/src/lib.cairo
index 7eeead4..8619ac1 100644
--- a/src/lib.cairo
+++ b/src/lib.cairo
@@ -1,9 +1,9 @@
-pub mod interfaces{
-    pub mod IHelloStarknet;
+pub mod interfaces {
     pub mod ICounter;
+    pub mod IHelloStarknet;
 }
 
-pub mod contracts{
+pub mod contracts {
     pub mod HelloStarknet;
     pub mod counter;
 }
diff --git a/tests/test_contract.cairo b/tests/test_contract.cairo
index 4fc48cc..d51e451 100644
--- a/tests/test_contract.cairo
+++ b/tests/test_contract.cairo
@@ -1,12 +1,10 @@
+use cairo_bootcamp_5::interfaces::IHelloStarknet::{
+    IHelloStarknetDispatcher, IHelloStarknetDispatcherTrait, IHelloStarknetSafeDispatcher,
+    IHelloStarknetSafeDispatcherTrait,
+};
+use snforge_std::{ContractClassTrait, DeclareResultTrait, declare};
 use starknet::ContractAddress;
 
-use snforge_std::{declare, ContractClassTrait, DeclareResultTrait};
-
-use cairo_bootcamp_5::interfaces::IHelloStarknet::IHelloStarknetSafeDispatcher;
-use cairo_bootcamp_5::interfaces::IHelloStarknet::IHelloStarknetSafeDispatcherTrait;
-use cairo_bootcamp_5::interfaces::IHelloStarknet::IHelloStarknetDispatcher;
-use cairo_bootcamp_5::interfaces::IHelloStarknet::IHelloStarknetDispatcherTrait;
-
 fn deploy_contract(name: ByteArray) -> ContractAddress {
     let contract = declare(name).unwrap().contract_class();
     let (contract_address, _) = contract.deploy(@ArrayTrait::new()).unwrap();
@@ -42,6 +40,6 @@ fn test_cannot_increase_balance_with_zero_value() {
         Result::Ok(_) => core::panic_with_felt252('Should have panicked'),
         Result::Err(panic_data) => {
             assert(*panic_data.at(0) == 'Amount cannot be 0', *panic_data.at(0));
-        }
+        },
     };
 }