diff --git a/docs/source/conf.py b/docs/source/conf.py
index 90fffb3ee..3829a3dd1 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -18,7 +18,7 @@
 
 # -- Project information -----------------------------------------------------
 
-version = "v24.04.0a1"
+version = "v24.04.0a2"
 release = f"{version}-dev"
 project = "Quantum ESPRESSO App"
 copyright_first_year = "2023"
diff --git a/setup.cfg b/setup.cfg
index 5f4aea118..d344ce906 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = aiidalab_qe
-version = 24.4.0a1
+version = 24.4.0a2
 description = Package for the AiiDAlab QE app
 long_description = file: README.md
 long_description_content_type = text/markdown
@@ -65,7 +65,7 @@ categories =
     quantum
 
 [bumpver]
-current_version = "v24.04.0a1"
+current_version = "v24.04.0a2"
 version_pattern = "v0Y.0M.PATCH[PYTAGNUM]"
 commit_message = "Bump version {old_version} -> {new_version}"
 commit = True
diff --git a/src/aiidalab_qe/version.py b/src/aiidalab_qe/version.py
index ca2e5be6d..6ac2e2b8c 100644
--- a/src/aiidalab_qe/version.py
+++ b/src/aiidalab_qe/version.py
@@ -3,4 +3,4 @@
 
 """This module contains project version information for both the app and the workflow."""
 
-__version__ = "v24.04.0a1"
+__version__ = "v24.04.0a2"