diff --git a/templates/infra/nginx/nginx.conf b/templates/infra/nginx/nginx.conf
index 51b3a9a..5d35c79 100644
--- a/templates/infra/nginx/nginx.conf
+++ b/templates/infra/nginx/nginx.conf
@@ -21,6 +21,7 @@ http {
     tcp_nodelay on;
     keepalive_timeout 65;
     types_hash_max_size 2048;
+    server_names_hash_bucket_size 128;
 
     # Gzip compression
     gzip on;
diff --git a/test/e2e/nginx/lua/nginx.conf b/test/e2e/nginx/lua/nginx.conf
index 82aaf67..e194bf3 100644
--- a/test/e2e/nginx/lua/nginx.conf
+++ b/test/e2e/nginx/lua/nginx.conf
@@ -18,6 +18,7 @@ http {
 
     sendfile on;
     keepalive_timeout 65;
+    server_names_hash_bucket_size 128;
 
     # Lua package path
     lua_package_path "/etc/nginx/lua/?.lua;;";
diff --git a/test/e2e/nginx/nginx.conf b/test/e2e/nginx/nginx.conf
index a273568..56ec416 100644
--- a/test/e2e/nginx/nginx.conf
+++ b/test/e2e/nginx/nginx.conf
@@ -19,6 +19,7 @@ http {
 
     sendfile on;
     keepalive_timeout 65;
+    server_names_hash_bucket_size 128;
 
     # Docker DNS resolver
     resolver 127.0.0.11 valid=10s ipv6=off;
diff --git a/test/e2e/nginx/security/nginx.conf b/test/e2e/nginx/security/nginx.conf
index 7afd8d6..75030f0 100644
--- a/test/e2e/nginx/security/nginx.conf
+++ b/test/e2e/nginx/security/nginx.conf
@@ -19,6 +19,7 @@ http {
 
     sendfile on;
     keepalive_timeout 65;
+    server_names_hash_bucket_size 128;
 
     # Docker DNS resolver
     resolver 127.0.0.11 valid=10s ipv6=off;