diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index d05177739fe..42792784a14 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -96,14 +96,8 @@ if (USE_INTERNAL_ZLIB_LIBRARY)
     add_subdirectory (${INTERNAL_ZLIB_NAME})
     # We should use same defines when including zlib.h as used when zlib compiled
     target_compile_definitions (zlib PUBLIC ZLIB_COMPAT WITH_GZFILEOP)
-    if (TARGET zlibstatic)
-        target_compile_definitions (zlibstatic PUBLIC ZLIB_COMPAT WITH_GZFILEOP)
-    endif ()
     if (ARCH_AMD64 OR ARCH_AARCH64)
         target_compile_definitions (zlib PUBLIC X86_64 UNALIGNED_OK)
-        if (TARGET zlibstatic)
-            target_compile_definitions (zlibstatic PUBLIC X86_64 UNALIGNED_OK)
-        endif ()
     endif ()
 endif ()
 
diff --git a/contrib/zlib-ng b/contrib/zlib-ng
index 6fd1846c8b8..b82d3497a5a 160000
--- a/contrib/zlib-ng
+++ b/contrib/zlib-ng
@@ -1 +1 @@
-Subproject commit 6fd1846c8b8f59436fe2dd752d0f316ddbb64df6
+Subproject commit b82d3497a5afc46dec3c5d07e4b163b169f251d7