diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/compress/ZipUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/compress/ZipUtil.java
index 1543721bc..0f50d8cdd 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/compress/ZipUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/compress/ZipUtil.java
@@ -942,7 +942,7 @@ public class ZipUtil {
 	 */
 	public static byte[] zlib(final InputStream in, final int level, final int length) {
 		final ByteArrayOutputStream out = new ByteArrayOutputStream(length);
-		Deflate.of(in, out, false).deflater(level);
+		Deflate.of(in, out, false).deflater(level).close();
 		return out.toByteArray();
 	}
 
@@ -994,7 +994,7 @@ public class ZipUtil {
 	 */
 	public static byte[] unZlib(final InputStream in, final int length) {
 		final ByteArrayOutputStream out = new ByteArrayOutputStream(length);
-		Deflate.of(in, out, false).inflater();
+		Deflate.of(in, out, false).inflater().close();
 		return out.toByteArray();
 	}