diff --git a/activemq-client/pom.xml b/activemq-client/pom.xml
index 1a351411..f987d43c 100644
--- a/activemq-client/pom.xml
+++ b/activemq-client/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-reporter-parent</artifactId>
     <groupId>io.zipkin.reporter2</groupId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/amqp-client/pom.xml b/amqp-client/pom.xml
index 7af75881..9e34f04b 100644
--- a/amqp-client/pom.xml
+++ b/amqp-client/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-sender-amqp-client</artifactId>
diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index a0f8fd45..d7daedd0 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -5,15 +5,13 @@
     SPDX-License-Identifier: Apache-2.0
 
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>benchmarks</artifactId>
@@ -157,7 +155,7 @@
               <!-- instead of javac-with-errorprone -->
               <compilerId>javac</compilerId>
               <!-- scrub errorprone compiler args -->
-              <compilerArgs/>
+              <compilerArgs />
               <annotationProcessorPaths>
                 <path>
                   <groupId>org.openjdk.jmh</groupId>
diff --git a/bom/pom.xml b/bom/pom.xml
index fef6fe96..b6c1102d 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -20,7 +20,7 @@
   <groupId>io.zipkin.reporter2</groupId>
   <artifactId>zipkin-reporter-bom</artifactId>
   <name>Zipkin Reporter BOM</name>
-  <version>3.4.0-SNAPSHOT</version>
+  <version>3.4.0</version>
   <packaging>pom</packaging>
   <description>Bill Of Materials POM for all Zipkin reporter artifacts</description>
 
@@ -51,7 +51,7 @@
     <url>https://github.com/openzipkin/zipkin-reporter-java</url>
     <connection>scm:git:https://github.com/openzipkin/zipkin-reporter-java.git</connection>
     <developerConnection>scm:git:https://github.com/openzipkin/zipkin-reporter-java.git</developerConnection>
-    <tag>HEAD</tag>
+    <tag>3.4.0</tag>
   </scm>
 
   <!-- Developer section is needed for Maven Central, but doesn't need to include each person -->
diff --git a/brave/pom.xml b/brave/pom.xml
index 556f3a1a..39d0faf0 100644
--- a/brave/pom.xml
+++ b/brave/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/core/pom.xml b/core/pom.xml
index 3a3999e7..7dc72dd5 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-reporter</artifactId>
diff --git a/kafka/pom.xml b/kafka/pom.xml
index d92b5429..9bcde223 100644
--- a/kafka/pom.xml
+++ b/kafka/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-sender-kafka</artifactId>
diff --git a/libthrift/pom.xml b/libthrift/pom.xml
index 5dfe1823..170a1ec5 100644
--- a/libthrift/pom.xml
+++ b/libthrift/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-sender-libthrift</artifactId>
diff --git a/metrics-micrometer/pom.xml b/metrics-micrometer/pom.xml
index 8b3aecd0..53bcd04b 100644
--- a/metrics-micrometer/pom.xml
+++ b/metrics-micrometer/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-reporter-metrics-micrometer</artifactId>
diff --git a/okhttp3/pom.xml b/okhttp3/pom.xml
index d80009f3..066690b3 100644
--- a/okhttp3/pom.xml
+++ b/okhttp3/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-sender-okhttp3</artifactId>
diff --git a/pom.xml b/pom.xml
index 1a19a685..cbbd7a98 100755
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
   <groupId>io.zipkin.reporter2</groupId>
   <artifactId>zipkin-reporter-parent</artifactId>
-  <version>3.4.0-SNAPSHOT</version>
+  <version>3.4.0</version>
   <packaging>pom</packaging>
 
   <modules>
@@ -113,7 +113,7 @@
     <url>https://github.com/openzipkin/zipkin-reporter-java</url>
     <connection>scm:git:https://github.com/openzipkin/zipkin-reporter-java.git</connection>
     <developerConnection>scm:git:https://github.com/openzipkin/zipkin-reporter-java.git</developerConnection>
-    <tag>HEAD</tag>
+    <tag>3.4.0</tag>
   </scm>
 
   <!-- Developer section is needed for Maven Central, but doesn't need to include each person -->
diff --git a/spring-beans/pom.xml b/spring-beans/pom.xml
index d48926f7..d461d7c4 100644
--- a/spring-beans/pom.xml
+++ b/spring-beans/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/urlconnection/pom.xml b/urlconnection/pom.xml
index d7916237..fed4bc20 100644
--- a/urlconnection/pom.xml
+++ b/urlconnection/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>io.zipkin.reporter2</groupId>
     <artifactId>zipkin-reporter-parent</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
   </parent>
 
   <artifactId>zipkin-sender-urlconnection</artifactId>