diff --git a/scripts/cross-build.sh b/scripts/cross-build.sh
index 848aef5..d6e4b31 100755
--- a/scripts/cross-build.sh
+++ b/scripts/cross-build.sh
@@ -10,7 +10,7 @@ STAGE_ROOT="${STAGE_ROOT:-/opt/stage}"
 BUILD_ROOT="${BUILD_ROOT:-/opt/build}"
 BUILD_TARGET="${BUILD_TARGET:-x86_64}"
 
-ZLIB_VERSION="${ZLIB_VERSION:-1.2.11}"
+ZLIB_VERSION="${ZLIB_VERSION:-1.2.13}"
 JSON_C_VERSION="${JSON_C_VERSION:-0.15}"
 MBEDTLS_VERSION="${MBEDTLS_VERSION:-2.16.8}"
 LIBUV_VERSION="${LIBUV_VERSION:-1.40.0}"