diff --git a/bindings/mruby/README.md b/bindings/mruby/README.md
index 41b3425..3e83b76 100644
--- a/bindings/mruby/README.md
+++ b/bindings/mruby/README.md
@@ -19,7 +19,8 @@ MRuby::Build.new do |conf|
   # ...
   conf.gem github: 'tailix/libkernaux',
            path: 'bindings/mruby',
-           branch: 'v0.6.0'
+           branch: 'v0.6.0',
+           checksum_hash: '7285d9dfe9811befd1901fd5d8230191d0c433b0'
   # ...
 end
 ```
diff --git a/sha256sums.txt b/sha256sums.txt
index d429427..5be8c3a 100644
--- a/sha256sums.txt
+++ b/sha256sums.txt
@@ -1,3 +1,8 @@
+6f32427f7cffdf11c0a11c26605b93e4bc2bdc6b02dd308d75d1e4aed88c6055  libkernaux-0.6.0.tar.gz
+2734241f544ae5f5cceb72e9b61ac01b84013e6455c4adb4c0a74c4ac68f477c  kernaux-0.6.0.crate
+4cd9e098209d1f81cf9efeb334d8b5b9814d875e3ca7ea2e83741acf40d21477  kernaux-sys-0.6.0.crate
+56b78efbb4714719c151c6b63dc708db28a5eed8c6ea60e7f96f8c9f355c65ef  kernaux-0.6.0.gem
+#
 e18d88baa68295e57a05348f059bed105b14d6c6b52904db8c04c84cd70629ee  libkernaux-0.5.0.tar.gz
 c0bc0ed3c396893797912356366068ad04054ade23e293bbf61c72975165a3fc  kernaux-0.5.0.crate
 986b2f1b0befb8e1e1a6f97e67a64ab52974524eaa3f3948deef2dff28be946a  kernaux-sys-0.5.0.crate