diff --git a/README.md b/README.md
index 390e8771..271024b0 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@ repositories {
 }
 
 dependencies {
-	implementation 'org.pgpainless:pgpainless-core:1.2.2'
+	implementation 'org.pgpainless:pgpainless-core:1.3.1'
 }
 ```
 
diff --git a/pgpainless-sop/README.md b/pgpainless-sop/README.md
index 0ef67686..58c1e9c9 100644
--- a/pgpainless-sop/README.md
+++ b/pgpainless-sop/README.md
@@ -23,7 +23,7 @@ To start using pgpainless-sop in your code, include the following lines in your
 ...
 dependencies {
     ...
-    implementation "org.pgpainless:pgpainless-sop:1.2.2"
+    implementation "org.pgpainless:pgpainless-sop:1.3.1"
     ...
 }
 
@@ -34,7 +34,7 @@ dependencies {
     <dependency>
         <groupId>org.pgpainless</groupId>
         <artifactId>pgpainless-sop</artifactId>
-        <version>1.2.2</version>
+        <version>1.3.1</version>
     </dependency>
     ...
 </dependencies>
diff --git a/version.gradle b/version.gradle
index b97d329f..97e1dfb2 100644
--- a/version.gradle
+++ b/version.gradle
@@ -5,7 +5,7 @@
 allprojects {
     ext {
         shortVersion = '1.3.1'
-        isSnapshot = true
+        isSnapshot = false
         pgpainlessMinAndroidSdk = 10
         javaSourceCompatibility = 1.8
         bouncyCastleVersion = '1.71'