diff --git a/.travis.yml b/.travis.yml
index 71a03a97..da630e71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,9 +3,9 @@ language: ruby
 cache: bundler
 bundler_args: --deployment
 rvm:
-  - 2.4.7
-  - 2.5.6
-  - 2.6.4
+  - 2.4.9
+  - 2.5.7
+  - 2.6.5
   - 2.7.0-preview1
 before_install:
   # https://github.com/travis-ci/travis-ci/issues/8978#issuecomment-354036443
diff --git a/Gemfile.lock b/Gemfile.lock
index f60809b0..ec2db709 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,7 +67,7 @@ GEM
     mime-types-data (3.2019.0904)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.12.0)
+    minitest (5.12.2)
     multipart-post (2.1.1)
     naught (1.1.0)
     netrc (0.11.0)
@@ -104,7 +104,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.2)
-    rubocop (0.74.0)
+    rubocop (0.75.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.6)
@@ -142,7 +142,7 @@ GEM
       unf_ext
     unf_ext (0.0.7.6)
     unicode-display_width (1.6.0)
-    webmock (3.7.5)
+    webmock (3.7.6)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)