diff --git a/README.md b/README.md
index 36f83a6..e36a589 100644
--- a/README.md
+++ b/README.md
@@ -20,8 +20,8 @@
 #### From [ESSENTIAL KAOS Public Repository](https://pkgs.kaos.st)
 
 ```bash
-sudo yum install -y https://pkgs.kaos.st/kaos-repo-latest.el$(grep 'CPE_NAME' /etc/os-release | tr -d '"' | cut -d':' -f5).noarch.rpm
-sudo yum install rbbuild
+sudo dnf install -y https://pkgs.kaos.st/kaos-repo-latest.el$(grep 'CPE_NAME' /etc/os-release | tr -d '"' | cut -d':' -f5).noarch.rpm
+sudo dnf install rbbuild
 ```
 
 #### Using Makefile and Git
diff --git a/SOURCES/defs/jruby-10.0.0.0 b/SOURCES/defs/jruby-10.0.0.0
new file mode 100644
index 0000000..81d9b0f
--- /dev/null
+++ b/SOURCES/defs/jruby-10.0.0.0
@@ -0,0 +1,11 @@
+# -- [RBdef] --
+# UPDATED 15/Apr/2025 14:38:46 by Anton Novojilov <andy@essentialkaos.com>
+
+deps(rpm): make gcc gcc-c++ jre21
+deps(deb): make gcc build-essentials openjdk-11
+
+[default]
+  package: "jruby-10.0.0.0" "https://s3.amazonaws.com/jruby.org/downloads/10.0.0.0/jruby-bin-10.0.0.0.tar.gz" "6c3fdec21aee16343f3735eb5940a59bc0d6a26e" jruby
+
+[essentialkaos]
+  package: "jruby-10.0.0.0" "https://ruby.kaos.st/jruby-10.0.0.0.tzst" "983f07c277d1ede901b627ae65335759c11f9a33" jruby
diff --git a/rbbuild-defs.spec b/rbbuild-defs.spec
index 2aa54e0..dab33e9 100644
--- a/rbbuild-defs.spec
+++ b/rbbuild-defs.spec
@@ -2,7 +2,7 @@
 
 Summary:    Def files for rbbuild utility
 Name:       rbbuild-defs
-Version:    2.0.12
+Version:    2.0.13
 Release:    0%{?dist}
 License:    Apache License, Version 2.0
 Vendor:     ESSENTIAL KAOS
@@ -51,6 +51,9 @@ rm -rf %{buildroot}
 ################################################################################
 
 %changelog
+* Tue Apr 15 2025 Anton Novojilov <andy@essentialkaos.com> - 2.0.13-0
+- Added jruby-10.0.0.0
+
 * Mon Apr 14 2025 Anton Novojilov <andy@essentialkaos.com> - 2.0.12-0
 - Added 3.1.7
 - Added 3.1.7-jemalloc