diff --git a/.gitignore b/.gitignore
index 9830ef39b..ae9f83c46 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,6 @@ perf.data*
 /bin
 genesis.ssz
 /clippy.toml
+
+# IntelliJ
+/*.iml
diff --git a/testing/web3signer_tests/build.rs b/testing/web3signer_tests/build.rs
index ac34b5197..f62dff0b6 100644
--- a/testing/web3signer_tests/build.rs
+++ b/testing/web3signer_tests/build.rs
@@ -29,6 +29,8 @@ pub async fn download_binary(dest_dir: PathBuf) {
 
     let version = if let Some(version) = FIXED_VERSION_STRING {
         version.to_string()
+    } else if let Ok(env_version) = env::var("LIGHTHOUSE_WEB3SIGNER_VERSION") {
+        env_version
     } else {
         // Get the latest release of the web3 signer repo.
         let latest_response: Value = client