diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2080c90a6f4f318470bdf8d882a3be9ae967e580..758b0edfa410c940ed8f8362092f5b2945102c40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## [(next version)](./README.md#for-developers)
+
+* (no changes yet)
+
 ## [1.2.0](https://www3.hhu.de/stups/downloads/prob2-jupyter/prob2-jupyter-kernel-1.2.0-all.jar)
 
 * Added support for Java 14.
diff --git a/build.gradle b/build.gradle
index 66c4aebff52bd18782950201602e2bf6ce199616..1d79d7cf24963d26188d0d2756d18eed45a0694b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ plugins {
 	id("com.github.johnrengelman.shadow").version("5.2.0")
 }
 
-version = "1.2.0"
+version = "1.2.1-SNAPSHOT"
 
 final isSnapshot = project.version.endsWith("-SNAPSHOT")