diff --git a/.travis.yml b/.travis.yml
index c0f34c9..5924a5e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -74,7 +74,7 @@ env:
   matrix:
     - OPENSSL_VER=1.0.2u OPENSSL_PATCH_VER=1.0.2h
     - OPENSSL_VER=1.1.0l OPENSSL_PATCH_VER=1.1.0d
-    - OPENSSL_VER=1.1.1f OPENSSL_PATCH_VER=1.1.1f
+    - OPENSSL_VER=1.1.1k OPENSSL_PATCH_VER=1.1.1f
 
 jobs:
     include:
@@ -83,7 +83,7 @@ jobs:
         - <<: *linux-s390x
           env: OPENSSL_VER=1.1.0l OPENSSL_PATCH_VER=1.1.0d
         - <<: *linux-s390x
-          env: OPENSSL_VER=1.1.1f OPENSSL_PATCH_VER=1.1.1f
+          env: OPENSSL_VER=1.1.1k OPENSSL_PATCH_VER=1.1.1f
 
 install:
   - sudo cpanm --notest Test::Nginx IPC::Run3 > build.log 2>&1 || (cat build.log && exit 1)