diff -uri redis.orig/debian/changelog redis_5.0.3-4/debian/changelog
--- redis.orig/debian/changelog	2021-02-25 17:46:45.000000000 +0000
+++ redis_5.0.3-4/debian/changelog	2021-08-31 06:39:39.010697241 +0000
@@ -1,3 +1,10 @@
+redis (5:5.0.3-4+deb10u4) buster; urgency=medium
+
+  * TLS support.
+    (Closes: #951255)
+
+ -- Sandino Araico Sanchez <sandino@sandino.net>  Tue, 31 Aug 2021 01:40:45 -0500
+
 redis (5:5.0.3-4+deb10u3) buster; urgency=medium
 
   * CVE-2021-21309: Fix a series of integer overflow issues on 32-bit systems.
diff -uri redis.orig/debian/control redis_5.0.3-4/debian/control
--- redis.orig/debian/control	2021-02-25 17:46:45.000000000 +0000
+++ redis_5.0.3-4/debian/control	2021-08-31 06:28:34.058345898 +0000
@@ -8,10 +8,12 @@
  libhiredis-dev (>= 0.14.0),
  libjemalloc-dev [linux-any],
  liblua5.1-dev,
+ libssl-dev,
  lua-bitop-dev,
  lua-cjson-dev,
  procps <!nocheck>,
  tcl <!nocheck>,
+ tcl-tls <!nocheck>,
 Standards-Version: 4.3.0
 Homepage: https://redis.io/
 Vcs-Git: https://salsa.debian.org/lamby/pkg-redis.git
diff -uri redis.orig/debian/rules redis_5.0.3-4/debian/rules
--- redis.orig/debian/rules	2021-02-25 17:46:45.000000000 +0000
+++ redis_5.0.3-4/debian/rules	2021-08-31 06:31:35.015530109 +0000
@@ -17,6 +17,7 @@
 export CFLAGS CPPFLAGS LDFLAGS
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 export DEB_LDFLAGS_MAINT_APPEND = -Wl,-no-as-needed -ldl -latomic $(LUA_LDFLAGS)
+export BUILD_TLS=yes
 
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
 	NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
@@ -48,9 +49,11 @@
 
 override_dh_auto_test:
 ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
-	# Avoid race conditions in upstream testsuite.
-	./runtest --clients 1 || true
-	./runtest-cluster || true
+	# Generate a root CA and server certificate for testing
+	./utils/gen-test-certs.sh
+	# Avoid race conditions in upstream testsuite
+	./runtest --clients 1 --tls || true
+	./runtest-cluster --tls || true
 	./runtest-sentinel || true
 endif