diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index 98e098b..e4b7ba4 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -1826,7 +1826,7 @@
     hash.hash = &conf->upstream.hide_headers_hash;
     hash.key = ngx_hash_key_lc;
     hash.max_size = 512;
-    hash.bucket_size = ngx_cacheline_size;
+    hash.bucket_size = 64;
     hash.name = "fastcgi_hide_headers_hash";
     hash.pool = cf->pool;
     hash.temp_pool = NULL;
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index f4007be..0e6bb1d 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -1823,7 +1823,7 @@
     hash.hash = &conf->upstream.hide_headers_hash;
     hash.key = ngx_hash_key_lc;
     hash.max_size = 512;
-    hash.bucket_size = ngx_cacheline_size;
+    hash.bucket_size = 64;
     hash.name = "proxy_hide_headers_hash";
     hash.pool = cf->pool;
     hash.temp_pool = NULL;
diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
index 395282d..1c930ed 100644
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -365,7 +365,7 @@
     hash.hash = &cmcf->headers_in_hash;
     hash.key = ngx_hash_key_lc;
     hash.max_size = 512;
-    hash.bucket_size = ngx_cacheline_size;
+    hash.bucket_size = 64;
     hash.name = "headers_in_hash";
     hash.pool = cf->pool;
     hash.temp_pool = NULL;
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 2cdfdc8..7d259d0 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2941,7 +2941,7 @@
     hash.hash = &umcf->headers_in_hash;
     hash.key = ngx_hash_key_lc;
     hash.max_size = 512;
-    hash.bucket_size = ngx_cacheline_size;
+    hash.bucket_size = 64;
     hash.name = "upstream_headers_in_hash";
     hash.pool = cf->pool;
     hash.temp_pool = NULL;