diff --git a/.gitmodules b/.gitmodules
index fbbb6e4..ebb8d01 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,10 +13,6 @@
 [submodule "lib/openssl"]
 	path = lib/openssl
 	url = https://github.com/hakasenyang/openssl-custom.git
-[submodule "lib/zlib"]
-	path = lib/zlib
-	url = https://github.com/cloudflare/zlib.git
-	branch = gcc.amd64
 [submodule "lib/ngx_http_geoip2_module"]
 	path = lib/ngx_http_geoip2_module
 	url = https://github.com/leev/ngx_http_geoip2_module.git
diff --git a/lib/zlib b/lib/zlib
deleted file mode 160000
index d213e64..0000000
--- a/lib/zlib
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d213e64378ec4c289429145ac0e5ee35d1214cd4