diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52c99ce44..0a4efc73a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.31.3-sp.1](https://www.github.com/googleapis/google-api-java-client/compare/1.31.3...v1.31.3-sp.1) (2021-05-11)
+
+
+### Features
+
+* configure initial sp version ([#1796](https://www.github.com/googleapis/google-api-java-client/issues/1796)) ([234c38c](https://www.github.com/googleapis/google-api-java-client/commit/234c38c5a5ec0b66ccef4a9bd48a56fdccfba2d3))
+
 ### [1.31.3](https://www.github.com/googleapis/google-api-java-client/compare/v1.31.2...v1.31.3) (2021-03-01)
 
 
diff --git a/README.md b/README.md
index 51bfa4dee..5ffb60c9e 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ To use Maven, add the following lines to your pom.xml file:
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client</artifactId>
-        <version>1.31.3</version>
+        <version>1.31.3-sp.1</version>
       </dependency>
     </dependencies>
   </project>
@@ -48,7 +48,7 @@ repositories {
     google()
 }
 dependencies {
-    compile 'com.google.api-client:google-api-client:1.31.3'
+    compile 'com.google.api-client:google-api-client:1.31.3-sp.1'
 }
 ```
 [//]: # ({x-version-update-end})
diff --git a/google-api-client-android/pom.xml b/google-api-client-android/pom.xml
index d2006215e..3f5500bbe 100644
--- a/google-api-client-android/pom.xml
+++ b/google-api-client-android/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-android</artifactId>
diff --git a/google-api-client-appengine/pom.xml b/google-api-client-appengine/pom.xml
index 4fd61ba79..02be15b68 100644
--- a/google-api-client-appengine/pom.xml
+++ b/google-api-client-appengine/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-appengine</artifactId>
diff --git a/google-api-client-assembly/pom.xml b/google-api-client-assembly/pom.xml
index ba1a6672f..bff7538a4 100644
--- a/google-api-client-assembly/pom.xml
+++ b/google-api-client-assembly/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>com.google.api-client</groupId>
diff --git a/google-api-client-bom/pom.xml b/google-api-client-bom/pom.xml
index 22a8f9809..bbfcbec58 100644
--- a/google-api-client-bom/pom.xml
+++ b/google-api-client-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api-client</groupId>
   <artifactId>google-api-client-bom</artifactId>
-  <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+  <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
   <packaging>pom</packaging>
 
   <name>Google API Client Library for Java BOM</name>
@@ -63,53 +63,53 @@
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-android</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-appengine</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-assembly</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
         <type>pom</type>
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-gson</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-jackson2</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-java6</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-protobuf</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-servlet</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-xml</artifactId>
-        <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-api-client-gson/pom.xml b/google-api-client-gson/pom.xml
index 928f6786e..7923f2896 100644
--- a/google-api-client-gson/pom.xml
+++ b/google-api-client-gson/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-gson</artifactId>
diff --git a/google-api-client-jackson2/pom.xml b/google-api-client-jackson2/pom.xml
index 2cfc73292..50e02df6d 100644
--- a/google-api-client-jackson2/pom.xml
+++ b/google-api-client-jackson2/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-jackson2</artifactId>
diff --git a/google-api-client-java6/pom.xml b/google-api-client-java6/pom.xml
index a2ac4c20e..4c3cbe947 100644
--- a/google-api-client-java6/pom.xml
+++ b/google-api-client-java6/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-java6</artifactId>
diff --git a/google-api-client-protobuf/pom.xml b/google-api-client-protobuf/pom.xml
index 3dc3f9977..38cf03d30 100644
--- a/google-api-client-protobuf/pom.xml
+++ b/google-api-client-protobuf/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-protobuf</artifactId>
diff --git a/google-api-client-servlet/pom.xml b/google-api-client-servlet/pom.xml
index 8380f1739..75a96f2f4 100644
--- a/google-api-client-servlet/pom.xml
+++ b/google-api-client-servlet/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-servlet</artifactId>
diff --git a/google-api-client-xml/pom.xml b/google-api-client-xml/pom.xml
index 45f434826..c32dbb808 100644
--- a/google-api-client-xml/pom.xml
+++ b/google-api-client-xml/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-xml</artifactId>
diff --git a/google-api-client/pom.xml b/google-api-client/pom.xml
index 8346541dd..fd876a944 100644
--- a/google-api-client/pom.xml
+++ b/google-api-client/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client</artifactId>
diff --git a/pom.xml b/pom.xml
index cc94f5e5e..c316b76ec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
   </parent>
   <groupId>com.google.api-client</groupId>
   <artifactId>google-api-client-parent</artifactId>
-  <version>1.31.3-sp.1-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+  <version>1.31.3-sp.1</version><!-- {x-version-update:google-api-client:current} -->
   <packaging>pom</packaging>
   <name>Parent for the Google API Client Library for Java</name>
 
diff --git a/versions.txt b/versions.txt
index ea0a4ce1c..4b5223ac6 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-api-client:1.31.3:1.31.3-sp.1-SNAPSHOT
+google-api-client:1.31.3-sp.1:1.31.3-sp.1