diff --git a/Matrixfile b/Matrixfile
index d207523de9d..fc08323fbbd 100644
--- a/Matrixfile
+++ b/Matrixfile
@@ -211,9 +211,10 @@
     'rails61-semantic-logger' => '✅ 2.5 / ✅ 2.6 / ✅ 2.7 / ✅ 3.0 / ✅ 3.1 / ✅ 3.2 / ✅ 3.3 / ✅ 3.4 / ✅ jruby'
   },
   'action_cable' => {
-    'rails5-mysql2'  => '✅ 2.5 / ✅ 2.6 / ❌ 2.7 / ❌ 3.0 / ❌ 3.1 / ❌ 3.2 / ❌ 3.3 / ❌ 3.4 / ✅ jruby',
-    'rails6-mysql2'  => '✅ 2.5 / ✅ 2.6 / ✅ 2.7 / ❌ 3.0 / ❌ 3.1 / ❌ 3.2 / ❌ 3.3 / ❌ 3.4 / ✅ jruby',
-    'rails61-mysql2' => '✅ 2.5 / ✅ 2.6 / ✅ 2.7 / ✅ 3.0 / ✅ 3.1 / ✅ 3.2 / ✅ 3.3 / ✅ 3.4 / ✅ jruby'
+    # FIXME: Enable the test for JRuby after fixing `log writing failed. closed stream` in CircleCI.
+    'rails5-mysql2'  => '✅ 2.5 / ✅ 2.6 / ❌ 2.7 / ❌ 3.0 / ❌ 3.1 / ❌ 3.2 / ❌ 3.3 / ❌ 3.4 / ❌ jruby',
+    'rails6-mysql2'  => '✅ 2.5 / ✅ 2.6 / ✅ 2.7 / ❌ 3.0 / ❌ 3.1 / ❌ 3.2 / ❌ 3.3 / ❌ 3.4 / ❌ jruby',
+    'rails61-mysql2' => '✅ 2.5 / ✅ 2.6 / ✅ 2.7 / ✅ 3.0 / ✅ 3.1 / ✅ 3.2 / ✅ 3.3 / ✅ 3.4 / ❌ jruby'
   },
   'action_mailer' => {
     'rails5-mysql2'  => '✅ 2.5 / ✅ 2.6 / ❌ 2.7 / ❌ 3.0 / ❌ 3.1 / ❌ 3.2 / ❌ 3.3 / ❌ 3.4 / ✅ jruby',