diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3312c16e..7817f8a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ SPDX-License-Identifier: CC0-1.0
 
 # PGPainless Changelog
 
-## 1.4.0-SNAPSHOT
+## 1.4.0-rc1
 - Reimplement message consumption via new `OpenPgpMessageInputStream`
   - Fix validation of prepended signatures (#314)
   - Fix validation of nested signatures (#319)
diff --git a/README.md b/README.md
index 305e5cea..1855f742 100644
--- a/README.md
+++ b/README.md
@@ -191,7 +191,7 @@ repositories {
 }
 
 dependencies {
-	implementation 'org.pgpainless:pgpainless-core:1.3.8'
+	implementation 'org.pgpainless:pgpainless-core:1.4.0-rc1'
 }
 ```
 
diff --git a/pgpainless-sop/README.md b/pgpainless-sop/README.md
index ebb1736c..ffd6c84b 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:1.3.8"
+    implementation "org.pgpainless:pgpainless-sop:1.4.0-rc1"
     ...
 }
 
@@ -34,7 +34,7 @@ dependencies {
     <dependency>
         <groupId>org.pgpainless</groupId>
         <artifactId>pgpainless-sop</artifactId>
-        <version>1.3.8</version>
+        <version>1.4.0-rc1</version>
     </dependency>
     ...
 </dependencies>
diff --git a/version.gradle b/version.gradle
index 1069132c..a756a407 100644
--- a/version.gradle
+++ b/version.gradle
@@ -4,8 +4,8 @@
 
 allprojects {
     ext {
-        shortVersion = '1.4.0'
-        isSnapshot = true
+        shortVersion = '1.4.0-rc1'
+        isSnapshot = false
         pgpainlessMinAndroidSdk = 10
         javaSourceCompatibility = 1.8
         bouncyCastleVersion = '1.72'