diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index df3180d..21cdcf7 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -7,7 +7,10 @@ on:
       - feat/**
       - fix/**
       - chore/**
+      - test/**
       - ci/**
+    tags:
+      - v[0-9]+.[0-9]+.[0-9]+
 
   pull_request:
     branches:
diff --git a/Cargo.toml b/Cargo.toml
index ff64c32..8a3fad1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,4 +32,5 @@ aws-sdk-kms = "1.37.0"
 [dev-dependencies]
 serde_json = "1.0.120"
 serde_plain = "1.0.2"
-tokio-test = "0.4.4"
\ No newline at end of file
+tokio-test = "0.4.4"
+lazy_static = "1.5.0"
\ No newline at end of file
diff --git a/tests/evm_account_test.rs b/tests/evm_account_test.rs
index 813be7e..e14709b 100644
--- a/tests/evm_account_test.rs
+++ b/tests/evm_account_test.rs
@@ -1,7 +1,9 @@
 mod evm_account {
     mod integration_tests {
+        use lazy_static::lazy_static;
         use serde_json;
         use serde_plain;
+        use std::env;
         use std::fs::File;
 
         use evm_signer_kms::evm_account::{
@@ -14,7 +16,15 @@ mod evm_account {
             EvmAccount,
         };
 
-        const KMS_KEY_ID: &str = "52c9a19f-bcfd-46a7-bd56-6d0cf98d8616";
+        // Reads the KMS_KEY_ID environment variable using lazy static evaluation.
+        // Assumes no default value and fails if the key ID is not set!
+        const KMS_KEY_ID_VAR_NAME: &str = "KMS_KEY_ID";
+        lazy_static! {
+            static ref KMS_KEY_ID: String = env::var(KMS_KEY_ID_VAR_NAME).expect(
+                format!("⚠️ `{}` environment variable not set", KMS_KEY_ID_VAR_NAME).as_str()
+            );
+        }
+
         const TEST_TO_ADDRESS_BYTES: [u8; 20] = [
             0xa9, 0xd8, 0x91, 0x86, 0xca, 0xa6, 0x63, 0xc8, 0xef, 0x03, 0x52, 0xfd, 0x1d, 0xb3,
             0x59, 0x62, 0x80, 0x62, 0x55, 0x73,
@@ -23,7 +33,7 @@ mod evm_account {
         // Only verifies if the signature can be generated
         #[tokio::test]
         async fn sign_transaction_succeed() {
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx = FreeMarketTransaction {
@@ -52,7 +62,7 @@ mod evm_account {
         async fn encode_signed_legacy_tx_succeed() {
             const TX_FILE_PATH: &str = "tests/data/valid-legacy-tx-01.json";
 
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx_file = File::open(TX_FILE_PATH).unwrap();
@@ -75,7 +85,7 @@ mod evm_account {
         async fn encode_signed_access_list_tx_succeed() {
             const TX_FILE_PATH: &str = "tests/data/valid-access-list-tx-02.json";
 
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx_file = File::open(TX_FILE_PATH).unwrap();
@@ -98,7 +108,7 @@ mod evm_account {
         async fn encode_signed_free_market_tx_no_access_list_succeed() {
             const TX_FILE_PATH: &str = "tests/data/valid-free-market-tx-01.json";
 
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx_file = File::open(TX_FILE_PATH).unwrap();
@@ -121,7 +131,7 @@ mod evm_account {
         async fn encode_signed_free_market_tx_with_access_list_1_succeed() {
             const TX_FILE_PATH: &str = "tests/data/valid-free-market-tx-03.json";
 
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx_file = File::open(TX_FILE_PATH).unwrap();
@@ -144,7 +154,7 @@ mod evm_account {
         async fn encode_signed_free_market_tx_with_access_list_2_succeed() {
             const TX_FILE_PATH: &str = "tests/data/valid-free-market-tx-04.json";
 
-            let kms_key = &kms_key::KmsKey::new(KMS_KEY_ID).await;
+            let kms_key = &kms_key::KmsKey::new(&KMS_KEY_ID).await;
             let evm_account = EvmAccount::new(kms_key);
 
             let tx_file = File::open(TX_FILE_PATH).unwrap();