diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index dee22b9..f05c7b1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -36,7 +36,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 'jruby-10.1.0.0'
+          ruby-version: 'jruby-10.1.1.0'
           rubygems: latest
       - name: Build gem
         run: gem build ruby-plsql.gemspec
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 482f482..38a9b6b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
           '4.0',
           '3.4',
           '3.3',
-          'jruby-10.1.0.0',
+          'jruby-10.1.1.0',
         ]
     env:
       NLS_LANG: AMERICAN_AMERICA.AL32UTF8
diff --git a/.github/workflows/test_11g.yml b/.github/workflows/test_11g.yml
index 17051c6..ab0ac61 100644
--- a/.github/workflows/test_11g.yml
+++ b/.github/workflows/test_11g.yml
@@ -19,7 +19,7 @@ jobs:
           '4.0',
           '3.4',
           '3.3',
-          'jruby-10.1.0.0',
+          'jruby-10.1.1.0',
         ]
     env:
       ORACLE_HOME: /opt/oracle/instantclient_21_21
diff --git a/.github/workflows/test_11g_ojdbc11.yml b/.github/workflows/test_11g_ojdbc11.yml
index f6457f2..0a643c7 100644
--- a/.github/workflows/test_11g_ojdbc11.yml
+++ b/.github/workflows/test_11g_ojdbc11.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         ruby: [
-          'jruby-10.1.0.0'
+          'jruby-10.1.1.0'
         ]
     env:
       ORACLE_HOME: /opt/oracle/instantclient_21_21
diff --git a/Gemfile b/Gemfile
index 58fe003..c437f69 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,10 @@ source "https://rubygems.org"
 group :development do
   gem "rspec_junit_formatter"
   gem "rdoc"
+
+  platforms :jruby do
+    gem "rbs", ">= 4.1.0.pre.2" # Use the java-platform gem so JRuby does not build the C extension
+  end
 end
 
 group :rubocop do
diff --git a/README.md b/README.md
index 763b9d9..aceffcd 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ ruby-plsql gem provides simple Ruby API for calling Oracle PL/SQL procedures. It
 
 NUMBER, BINARY_INTEGER, PLS_INTEGER, NATURAL, NATURALN, POSITIVE, POSITIVEN, SIGNTYPE, SIMPLE_INTEGER, VARCHAR, VARCHAR2, NVARCHAR2, CHAR, NCHAR, DATE, TIMESTAMP, CLOB, BLOB, BOOLEAN, PL/SQL RECORD, TABLE, VARRAY, OBJECT and CURSOR types are supported for input and output parameters and return values of PL/SQL procedures and functions.
 
-ruby-plsql is tested on CI against Ruby 2.4, 2.5, 2.7, 3.1, 3.2, 3.3, 3.4, 4.0 and JRuby 10.1.0.0. Ruby 2.4–3.1 remain in CI to verify compatibility with older ActiveRecord releases (see gemfiles/). The CI runs the suite against Oracle Database 23ai Free and Oracle Database XE 11g.
+ruby-plsql is tested on CI against Ruby 2.4, 2.5, 2.7, 3.1, 3.2, 3.3, 3.4, 4.0 and JRuby 10.1.1.0. Ruby 2.4–3.1 remain in CI to verify compatibility with older ActiveRecord releases (see gemfiles/). The CI runs the suite against Oracle Database 23ai Free and Oracle Database XE 11g.
 
 USAGE
 -----