diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca824958..79da4604 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@
 ## Changelog
 
 
+### 1.0.4-dev
+
+
+
 ### 1.0.3
 
 * `lobster-html-report`:
diff --git a/lobster/common/version.py b/lobster/common/version.py
index 575fe920..f7049c6e 100644
--- a/lobster/common/version.py
+++ b/lobster/common/version.py
@@ -17,8 +17,8 @@
 # License along with this program. If not, see
 # <https://www.gnu.org/licenses/>.
 
-VERSION_TUPLE = (1, 0, 3)
-VERSION_SUFFIX = ""
+VERSION_TUPLE = (1, 0, 4)
+VERSION_SUFFIX = "dev"
 
 LOBSTER_VERSION = ".".join(str(x) for x in VERSION_TUPLE) + (
     f"-{VERSION_SUFFIX}" if VERSION_SUFFIX else ""