diff --git a/proxysql.spec b/proxysql.spec
index b7e2f58..f779399 100644
--- a/proxysql.spec
+++ b/proxysql.spec
@@ -76,6 +76,8 @@ Patch1: libinjection_python2_to_3.patch
 Patch2: %{name}-gcc11.patch
 # Provides fixes for cmake scheme
 Patch3: %{name}_mariadb_cmake.patch
+# Removes deprecated openssl function
+Patch4: %{name}_openssl.patch
 
 %description
 ProxySQL is a high performance, high availability, protocol aware proxy for
@@ -87,6 +89,7 @@ MySQL and forks (like Percona Server and MariaDB).
 %patch1 -p1
 %patch2 -p1
 %patch3 -p1
+%patch4 -p1
 
 # Remove sources of debundled libraries from v2.2.0
 rm -r deps/{libssl,pcre,curl,lz4,libev,libconfig,libdaemon,sqlite3}
diff --git a/proxysql_openssl.patch b/proxysql_openssl.patch
new file mode 100644
index 0000000..c308365
--- /dev/null
+++ b/proxysql_openssl.patch
@@ -0,0 +1,23 @@
+According to docs:
+ CRYPTO_mem_ctrl() provides fine-grained control of memory leak tracking.
+ To enable tracking call CRYPTO_mem_ctrl() with a mode argument of the CRYPTO_MEM_CHECK_ON.
+ To disable tracking call CRYPTO_mem_ctrl() with a mode argument of the CRYPTO_MEM_CHECK_OFF.
+
+Since 3.0.0:
+ The memory-leak checking has been deprecated in OpenSSL 3.0 in favor of clang's memory and leak sanitizer.
+
+Notes:
+ This patch should not cause any problems. CRYPTO_mem_ctrl is probably used to debug potential TLS issues
+ and this is leftover that does not affect release builds.
+
+--- test/src/proxy_tls.cpp.org	2021-09-20 07:22:10.562767358 +0000
++++ test/src/proxy_tls.cpp	2021-09-20 07:19:31.035728759 +0000
+@@ -465,7 +465,7 @@
+ 
+ 	int ret = 0;
+ 
+-	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF);
++	//CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF);
+ 
+ 	bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
+