diff --git a/zlib-1.2.11-covscan-issues.patch b/zlib-1.2.11-covscan-issues.patch
index 2e777dc..743c035 100644
--- a/zlib-1.2.11-covscan-issues.patch
+++ b/zlib-1.2.11-covscan-issues.patch
@@ -23,29 +23,3 @@ index 089285a..9b09718 100644
          bstate = DEFLATE_HOOK(strm, flush, &bstate) ? bstate :
                   s->level == 0 ? deflate_stored(s, flush) :
 
---- zlib-1.2.11/test/crc32_test.c.old	2023-02-07 22:27:07.759829524 +0000
-+++ zlib-1.2.11/test/crc32_test.c	2023-02-07 22:28:03.729829524 +0000
-@@ -11,7 +11,7 @@
- #  include <stdlib.h>
- #endif
-
--void test_crc32  OF((uLong crc, Byte* buf, z_size_t len, uLong chk, int line));
-+void test_crc32  OF((uLong crc, char* buf, z_size_t len, uLong chk, int line));
- int main         OF((void));
-
- typedef struct {
-@@ -24,12 +24,12 @@ typedef struct {
-
- void test_crc32(crc, buf, len, chk, line)
-     uLong crc;
--    Byte *buf;
-+    char *buf;
-     z_size_t len;
-     uLong chk;
-     int line;
- {
--    uLong res = crc32(crc, buf, len);
-+    uLong res = crc32(crc, (Bytef *) buf, len);
-     if (res != chk) {
-         fprintf(stderr, "FAIL [%d]: crc32 returned 0x%08X expected 0x%08X\n",
-                 line, (unsigned int)res, (unsigned int)chk);
diff --git a/zlib.spec b/zlib.spec
index 40e85d5..93166f9 100644
--- a/zlib.spec
+++ b/zlib.spec
@@ -2,7 +2,7 @@
 
 Name:    zlib
 Version: 1.2.11
-Release: 38%{?dist}
+Release: 39%{?dist}
 Summary: Compression and decompression library
 # /contrib/dotzlib/ have Boost license
 License: zlib and Boost
@@ -213,6 +213,9 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
 
 
 %changelog
+* Thu Feb 09 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-39
+- Fix covscan issue CWE-681
+
 * Tue Feb 07 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-38
 - Resolve fuzzing issue for unknown memory access