diff --git a/contrib/dev-tools/container/e2e/mysql/run-e2e-tests.sh b/contrib/dev-tools/container/e2e/mysql/run-e2e-tests.sh
index 8ef3b43f..046862d5 100755
--- a/contrib/dev-tools/container/e2e/mysql/run-e2e-tests.sh
+++ b/contrib/dev-tools/container/e2e/mysql/run-e2e-tests.sh
@@ -41,7 +41,7 @@ docker ps
 # Run E2E tests with shared app instance
 TORRUST_INDEX_E2E_SHARED=true \
     TORRUST_INDEX_CONFIG_TOML_PATH="./share/default/config/index.public.e2e.container.mysql.toml" \
-    TORRUST_INDEX_E2E_DB_CONNECT_URL="mysql://root:root_secret_password@localhost:3306/torrust_index_e2e_testing" \
+    TORRUST_INDEX_E2E_DB_CONNECT_URL="mysql://root:root_secret_password@127.0.0.1:3306/torrust_index_e2e_testing" \
     cargo test ||
     {
         ./contrib/dev-tools/container/e2e/mysql/e2e-env-down.sh
diff --git a/tests/environments/shared.rs b/tests/environments/shared.rs
index 30ad1193..936cf375 100644
--- a/tests/environments/shared.rs
+++ b/tests/environments/shared.rs
@@ -36,7 +36,7 @@ impl TestEnv {
 impl Default for TestEnv {
     fn default() -> Self {
         Self {
-            authority: "localhost:3001".to_string(),
+            authority: "127.0.0.1:3001".to_string(),
         }
     }
 }