diff --git a/asciidoc/modules/vertx_micrometer_metrics.adoc b/asciidoc/modules/vertx_micrometer_metrics.adoc
index 6e6e1a5..d7a5088 100644
--- a/asciidoc/modules/vertx_micrometer_metrics.adoc
+++ b/asciidoc/modules/vertx_micrometer_metrics.adoc
@@ -2,7 +2,7 @@
 
 == Upgrade to Micrometer 1.14
 
-Micrometer 1.14 comes after 1.13, which a breaking change release if you are using the PrometheusMeterRegistry API in your code.
+Micrometer 1.14 comes after 1.13, which is a breaking change release if you are using the PrometheusMeterRegistry API in your code.
 
 Please take a look at Micrometer's https://github.com/micrometer-metrics/micrometer/wiki/1.13-Migration-Guide[migration guide].