diff --git a/.github/workflows/receive-pr.yml b/.github/workflows/receive-pr.yml
index 147756b93..eeb201ebd 100644
--- a/.github/workflows/receive-pr.yml
+++ b/.github/workflows/receive-pr.yml
@@ -8,7 +8,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches:
-      - main
+      - master
 
 concurrency:
   group: '${{ github.workflow }} @ ${{ github.ref }}'
diff --git a/dropwizard-metrics5/pom.xml b/dropwizard-metrics5/pom.xml
index 92333f129..90ec96bdf 100644
--- a/dropwizard-metrics5/pom.xml
+++ b/dropwizard-metrics5/pom.xml
@@ -42,7 +42,7 @@
     <dependency>
       <groupId>io.dropwizard.metrics5</groupId>
       <artifactId>metrics-core</artifactId>
-      <version>5.0.0-rc20</version>
+      <version>5.0.0-rc21</version>
     </dependency>
     <dependency>
       <groupId>${project.groupId}</groupId>