diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1674f72..3129bb0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.1.1] - 2021-04-21
+### Added
+- Add libvirt_versions_info metric.
+
 ## [2.1.0] - 2021-04-12
 ### Added
 - Add delay time metric. Exposed to vm as a steal time.
diff --git a/README.md b/README.md
index 018ed0c..cef1ab1 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ libvirt_domain_memory_stats_unused_bytes{domain="..."}
 libvirt_domain_memory_stats_usable_bytes{domain="..."}
 libvirt_domain_memory_stats_used_percent{domain="..."}
 
-libvirt_version_info{hypervisor="...",library="..."}
+libvirt_versions_info{hypervisor_running="...",libvirtd_running="...",libvirt_library="..."}
 libvirt_up
 ```