diff --git a/api/pom.xml b/api/pom.xml
index cfbff5a1..6e305688 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-parent</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
     </parent>
 
     <artifactId>microprofile-metrics-api</artifactId>
diff --git a/pom.xml b/pom.xml
index 6214d9e2..05c68739 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
 
     <groupId>org.eclipse.microprofile.metrics</groupId>
     <artifactId>microprofile-metrics-parent</artifactId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1-RC1</version>
     <packaging>pom</packaging>
     <name>MicroProfile Metrics</name>
     <description>Eclipse MicroProfile Metrics Feature :: Parent POM</description>
@@ -57,7 +57,7 @@
         <url>https://github.com/eclipse/microprofile-metrics</url>
         <connection>scm:git:https://github.com/eclipse/microprofile-metrics.git</connection>
         <developerConnection>scm:git:git@github.com:eclipse/microprofile-metrics.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>5.1.1-RC1</tag>
     </scm>
 
     <issueManagement>
diff --git a/spec/pom.xml b/spec/pom.xml
index ddeea6ef..9e4ad528 100644
--- a/spec/pom.xml
+++ b/spec/pom.xml
@@ -20,7 +20,7 @@
         <!-- This is just for now and will not work if the API has a separate release cycle than the rest. -->
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-parent</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
     </parent>
 
     <artifactId>microprofile-metrics-spec</artifactId>
diff --git a/tck/api/pom.xml b/tck/api/pom.xml
index 5ba0dccf..21b46eb2 100644
--- a/tck/api/pom.xml
+++ b/tck/api/pom.xml
@@ -13,7 +13,7 @@
         <!-- This is just for now and will not work if the API has a separate release cycle than the rest. -->
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-tck</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/tck/optional/pom.xml b/tck/optional/pom.xml
index c56b4cfc..becb3ceb 100644
--- a/tck/optional/pom.xml
+++ b/tck/optional/pom.xml
@@ -20,7 +20,7 @@
         <!-- This is just for now and will not work if the API has a separate release cycle than the rest. -->
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-tck</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/tck/pom.xml b/tck/pom.xml
index fa657fb4..9e1b9ae8 100644
--- a/tck/pom.xml
+++ b/tck/pom.xml
@@ -20,7 +20,7 @@
         <!-- This is just for now and will not work if the API has a separate release cycle than the rest. -->
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-parent</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
         
         <relativePath>../pom.xml</relativePath>
     </parent>
diff --git a/tck/rest/pom.xml b/tck/rest/pom.xml
index 8b7649b9..216804dd 100644
--- a/tck/rest/pom.xml
+++ b/tck/rest/pom.xml
@@ -20,7 +20,7 @@
         <!-- This is just for now and will not work if the API has a separate release cycle than the rest. -->
         <groupId>org.eclipse.microprofile.metrics</groupId>
         <artifactId>microprofile-metrics-tck</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1-RC1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>