diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 500c20d4515e..f97dc33ef76b 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>benchmarks</artifactId>
diff --git a/mockwebserver/pom.xml b/mockwebserver/pom.xml
index 354f15a4bb57..555e19ddfce3 100644
--- a/mockwebserver/pom.xml
+++ b/mockwebserver/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>mockwebserver</artifactId>
diff --git a/okcurl/pom.xml b/okcurl/pom.xml
index fe81b59a7d3c..a12f1f43acb1 100644
--- a/okcurl/pom.xml
+++ b/okcurl/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okcurl</artifactId>
diff --git a/okhttp-android-support/pom.xml b/okhttp-android-support/pom.xml
index c01f21722d9d..6d26b36731e4 100644
--- a/okhttp-android-support/pom.xml
+++ b/okhttp-android-support/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-android-support</artifactId>
diff --git a/okhttp-apache/pom.xml b/okhttp-apache/pom.xml
index e4ba3a1aedc7..8ae2bc8c239b 100644
--- a/okhttp-apache/pom.xml
+++ b/okhttp-apache/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-apache</artifactId>
diff --git a/okhttp-logging-interceptor/pom.xml b/okhttp-logging-interceptor/pom.xml
index f53a38ded9fa..6a451bf7faca 100644
--- a/okhttp-logging-interceptor/pom.xml
+++ b/okhttp-logging-interceptor/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>logging-interceptor</artifactId>
diff --git a/okhttp-testing-support/pom.xml b/okhttp-testing-support/pom.xml
index 5755d0406d82..943f53acb7e1 100644
--- a/okhttp-testing-support/pom.xml
+++ b/okhttp-testing-support/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-testing-support</artifactId>
diff --git a/okhttp-tests/pom.xml b/okhttp-tests/pom.xml
index 851137a2a671..5585632fc252 100644
--- a/okhttp-tests/pom.xml
+++ b/okhttp-tests/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-tests</artifactId>
diff --git a/okhttp-urlconnection/pom.xml b/okhttp-urlconnection/pom.xml
index 042e6c470c69..3aaa66dbdd9d 100644
--- a/okhttp-urlconnection/pom.xml
+++ b/okhttp-urlconnection/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-urlconnection</artifactId>
diff --git a/okhttp-ws-tests/pom.xml b/okhttp-ws-tests/pom.xml
index c7688dbf9a57..cef57596239c 100644
--- a/okhttp-ws-tests/pom.xml
+++ b/okhttp-ws-tests/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-ws-tests</artifactId>
diff --git a/okhttp-ws/pom.xml b/okhttp-ws/pom.xml
index 3fc9bef1e29c..7cbfab9e5baa 100644
--- a/okhttp-ws/pom.xml
+++ b/okhttp-ws/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp-ws</artifactId>
diff --git a/okhttp/pom.xml b/okhttp/pom.xml
index ac7292212c3a..a26e988b2741 100644
--- a/okhttp/pom.xml
+++ b/okhttp/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>okhttp</artifactId>
diff --git a/pom.xml b/pom.xml
index d0c4b4ec95a2..4be0178ea073 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 
   <groupId>com.squareup.okhttp3</groupId>
   <artifactId>parent</artifactId>
-  <version>3.3.1</version>
+  <version>3.4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>OkHttp (Parent)</name>
@@ -67,7 +67,7 @@
     <url>https://github.com/square/okhttp/</url>
     <connection>scm:git:https://github.com/square/okhttp.git</connection>
     <developerConnection>scm:git:git@github.com:square/okhttp.git</developerConnection>
-    <tag>parent-3.3.1</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <issueManagement>
diff --git a/samples/crawler/pom.xml b/samples/crawler/pom.xml
index 1c31fa363bff..a40fe5b58f8c 100644
--- a/samples/crawler/pom.xml
+++ b/samples/crawler/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3.sample</groupId>
     <artifactId>sample-parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>crawler</artifactId>
diff --git a/samples/guide/pom.xml b/samples/guide/pom.xml
index 603e3513ea6a..569099322cb7 100644
--- a/samples/guide/pom.xml
+++ b/samples/guide/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3.sample</groupId>
     <artifactId>sample-parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>guide</artifactId>
diff --git a/samples/pom.xml b/samples/pom.xml
index 9eb140cbd027..de77532ea58e 100644
--- a/samples/pom.xml
+++ b/samples/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3</groupId>
     <artifactId>parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <groupId>com.squareup.okhttp3.sample</groupId>
diff --git a/samples/simple-client/pom.xml b/samples/simple-client/pom.xml
index 1514cb685c76..5bb5efe41429 100644
--- a/samples/simple-client/pom.xml
+++ b/samples/simple-client/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3.sample</groupId>
     <artifactId>sample-parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>simple-client</artifactId>
diff --git a/samples/static-server/pom.xml b/samples/static-server/pom.xml
index bcfa15d532b2..dc446c5a2b66 100644
--- a/samples/static-server/pom.xml
+++ b/samples/static-server/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.squareup.okhttp3.sample</groupId>
     <artifactId>sample-parent</artifactId>
-    <version>3.3.1</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>static-server</artifactId>