diff --git a/SPECS/zlib/CVE-2022-37434.patch b/SPECS/zlib/CVE-2022-37434.patch
deleted file mode 100644
index 930c114dd47..00000000000
--- a/SPECS/zlib/CVE-2022-37434.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From eff308af425b67093bab25f80f1ae950166bece1 Mon Sep 17 00:00:00 2001
-From: Mark Adler <fork@madler.net>
-Date: Sat, 30 Jul 2022 15:51:11 -0700
-Subject: [PATCH 1/3] Fix a bug when getting a gzip header extra field with
- inflate().
-
-If the extra field was larger than the space the user provided with
-inflateGetHeader(), and if multiple calls of inflate() delivered
-the extra header data, then there could be a buffer overflow of the
-provided space. This commit assures that provided space is not
-exceeded.
-
-backported by @mfrw to 1.2.12 on 2022-08-16
-
-Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
----
- inflate.c | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/inflate.c b/inflate.c
-index 7be8c63..7a72897 100644
---- a/inflate.c
-+++ b/inflate.c
-@@ -763,9 +763,10 @@ int flush;
-                 copy = state->length;
-                 if (copy > have) copy = have;
-                 if (copy) {
-+                    len = state->head->extra_len - state->length;
-                     if (state->head != Z_NULL &&
--                        state->head->extra != Z_NULL) {
--                        len = state->head->extra_len - state->length;
-+                        state->head->extra != Z_NULL &&
-+                        len < state->head->extra_max) {
-                         zmemcpy(state->head->extra + len, next,
-                                 len + copy > state->head->extra_max ?
-                                 state->head->extra_max - len : copy);
--- 
-2.37.2
-
diff --git a/SPECS/zlib/Fix-extra-field-processing-bug-that-dereferences-NULL.patch b/SPECS/zlib/Fix-extra-field-processing-bug-that-dereferences-NULL.patch
deleted file mode 100644
index 2ddccb30cf5..00000000000
--- a/SPECS/zlib/Fix-extra-field-processing-bug-that-dereferences-NULL.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From 1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d Mon Sep 17 00:00:00 2001
-From: Mark Adler <fork@madler.net>
-Date: Mon, 8 Aug 2022 10:50:09 -0700
-Subject: [PATCH 3/3] Fix extra field processing bug that dereferences NULL
- state->head.
-
-The recent commit to fix a gzip header extra field processing bug
-introduced the new bug fixed here.
-
-backported by @mfrw to 1.2.12 on 2022-08-16
-
-Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
----
- inflate.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/inflate.c b/inflate.c
-index 7a72897..2a3c4fe 100644
---- a/inflate.c
-+++ b/inflate.c
-@@ -763,10 +763,10 @@ int flush;
-                 copy = state->length;
-                 if (copy > have) copy = have;
-                 if (copy) {
--                    len = state->head->extra_len - state->length;
-                     if (state->head != Z_NULL &&
-                         state->head->extra != Z_NULL &&
--                        len < state->head->extra_max) {
-+                        (len = state->head->extra_len - state->length) <
-+                            state->head->extra_max) {
-                         zmemcpy(state->head->extra + len, next,
-                                 len + copy > state->head->extra_max ?
-                                 state->head->extra_max - len : copy);
--- 
-2.37.2
-
diff --git a/SPECS/zlib/zlib.signatures.json b/SPECS/zlib/zlib.signatures.json
index 452e72062df..3bcb78da4a0 100644
--- a/SPECS/zlib/zlib.signatures.json
+++ b/SPECS/zlib/zlib.signatures.json
@@ -1,5 +1,5 @@
 {
  "Signatures": {
-  "zlib-1.2.12.tar.xz": "7db46b8d7726232a621befaab4a1c870f00a90805511c0e0090441dac57def18"
+  "zlib-1.2.13.tar.xz": "d14c38e313afc35a9a8760dadf26042f51ea0f5d154b0630a31da0540107fb98"
  }
 }
\ No newline at end of file
diff --git a/SPECS/zlib/zlib.spec b/SPECS/zlib/zlib.spec
index d7febef1903..52c11c39c42 100644
--- a/SPECS/zlib/zlib.spec
+++ b/SPECS/zlib/zlib.spec
@@ -1,15 +1,13 @@
 Summary:        Compression and decompression routines
 Name:           zlib
-Version:        1.2.12
-Release:        2%{?dist}
+Version:        1.2.13
+Release:        1%{?dist}
 URL:            https://www.zlib.net/
 License:        zlib
 Group:          Applications/System
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
 Source0:        https://www.zlib.net/%{name}-%{version}.tar.xz
-Patch0:         CVE-2022-37434.patch
-Patch1:         Fix-extra-field-processing-bug-that-dereferences-NULL.patch
 %description
 Compression and decompression routines
 %package    devel
@@ -51,8 +49,12 @@ make  %{?_smp_mflags} check
 %{_mandir}/man3/zlib.3.gz
 
 %changelog
+* Thu Apr 27 2023 Muhammad Falak <mwani@microsoft.com> - 1.2.13-1
+- Upgrade version to address java exception
+- Drop un-needed patches
+
 * Tue Aug 16 2022 Muhammad Falak <mwani@microsoft.com> - 1.2.12-2
-- Introduce patches from upstrea to address CVE-2022-37434
+- Introduce patches from upstream to address CVE-2022-37434
 
 * Tue Apr 12 2022 Nicolas Guibourge <nicolasg@microsoft.com> - 1.2.12-1
 - Upgrade to 1.12.2 to fix CVE-2018-25032