diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index e0add43014..33efeeeeff 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>benchmarks</artifactId>
diff --git a/pom.xml b/pom.xml
index 6209bf2d20..c78eb03f58 100755
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
 
   <groupId>io.zipkin</groupId>
   <artifactId>zipkin-parent</artifactId>
-  <version>3.1.0-SNAPSHOT</version>
+  <version>3.1.0</version>
   <packaging>pom</packaging>
 
   <modules>
@@ -143,7 +143,7 @@
     <url>https://github.com/openzipkin/zipkin</url>
     <connection>scm:git:https://github.com/openzipkin/zipkin.git</connection>
     <developerConnection>scm:git:https://github.com/openzipkin/zipkin.git</developerConnection>
-    <tag>HEAD</tag>
+    <tag>3.1.0</tag>
   </scm>
 
   <!-- Developer section is needed for Maven Central, but doesn't need to include each person -->
diff --git a/zipkin-collector/activemq/pom.xml b/zipkin-collector/activemq/pom.xml
index 89e38104b4..3bf4691fd1 100644
--- a/zipkin-collector/activemq/pom.xml
+++ b/zipkin-collector/activemq/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-collector-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-collector-activemq</artifactId>
diff --git a/zipkin-collector/core/pom.xml b/zipkin-collector/core/pom.xml
index ac69b73289..25f0081dbf 100644
--- a/zipkin-collector/core/pom.xml
+++ b/zipkin-collector/core/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-collector-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-collector</artifactId>
diff --git a/zipkin-collector/kafka/pom.xml b/zipkin-collector/kafka/pom.xml
index d1bd184dd0..9723bf9fb2 100644
--- a/zipkin-collector/kafka/pom.xml
+++ b/zipkin-collector/kafka/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-collector-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-collector-kafka</artifactId>
diff --git a/zipkin-collector/pom.xml b/zipkin-collector/pom.xml
index 317785acbd..23593c5a6b 100644
--- a/zipkin-collector/pom.xml
+++ b/zipkin-collector/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <groupId>io.zipkin.zipkin2</groupId>
diff --git a/zipkin-collector/rabbitmq/pom.xml b/zipkin-collector/rabbitmq/pom.xml
index 3704320c10..d827906f71 100644
--- a/zipkin-collector/rabbitmq/pom.xml
+++ b/zipkin-collector/rabbitmq/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-collector-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-collector-rabbitmq</artifactId>
diff --git a/zipkin-collector/scribe/pom.xml b/zipkin-collector/scribe/pom.xml
index 32f6450298..00a99a84bf 100644
--- a/zipkin-collector/scribe/pom.xml
+++ b/zipkin-collector/scribe/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-collector-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-collector-scribe</artifactId>
diff --git a/zipkin-junit5/pom.xml b/zipkin-junit5/pom.xml
index a97caf9ca4..b386fd8596 100644
--- a/zipkin-junit5/pom.xml
+++ b/zipkin-junit5/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <groupId>io.zipkin.zipkin2</groupId>
diff --git a/zipkin-lens/pom.xml b/zipkin-lens/pom.xml
index 70f3b38b53..b08cbecbf7 100644
--- a/zipkin-lens/pom.xml
+++ b/zipkin-lens/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-lens</artifactId>
diff --git a/zipkin-server/pom.xml b/zipkin-server/pom.xml
index 7751a552e2..cfefe95e07 100644
--- a/zipkin-server/pom.xml
+++ b/zipkin-server/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-server</artifactId>
diff --git a/zipkin-storage/cassandra/pom.xml b/zipkin-storage/cassandra/pom.xml
index 83313f099a..55bb881116 100644
--- a/zipkin-storage/cassandra/pom.xml
+++ b/zipkin-storage/cassandra/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-storage-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-storage-cassandra</artifactId>
diff --git a/zipkin-storage/elasticsearch/pom.xml b/zipkin-storage/elasticsearch/pom.xml
index 30c2cc3d2d..d82ba6be64 100644
--- a/zipkin-storage/elasticsearch/pom.xml
+++ b/zipkin-storage/elasticsearch/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-storage-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-storage-elasticsearch</artifactId>
diff --git a/zipkin-storage/mysql-v1/pom.xml b/zipkin-storage/mysql-v1/pom.xml
index 1ed1b2aaa8..7383b5546e 100644
--- a/zipkin-storage/mysql-v1/pom.xml
+++ b/zipkin-storage/mysql-v1/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin.zipkin2</groupId>
     <artifactId>zipkin-storage-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <artifactId>zipkin-storage-mysql-v1</artifactId>
diff --git a/zipkin-storage/pom.xml b/zipkin-storage/pom.xml
index 131f2c3be3..cb0aa92cd0 100644
--- a/zipkin-storage/pom.xml
+++ b/zipkin-storage/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <groupId>io.zipkin.zipkin2</groupId>
diff --git a/zipkin-tests/pom.xml b/zipkin-tests/pom.xml
index f4c20fb7e2..f60d1d3aef 100644
--- a/zipkin-tests/pom.xml
+++ b/zipkin-tests/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <groupId>io.zipkin.zipkin2</groupId>
diff --git a/zipkin/pom.xml b/zipkin/pom.xml
index 861529b669..3dcf211a81 100644
--- a/zipkin/pom.xml
+++ b/zipkin/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>io.zipkin</groupId>
     <artifactId>zipkin-parent</artifactId>
-    <version>3.1.0-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <groupId>io.zipkin.zipkin2</groupId>