diff --git a/.bumpversion.toml b/.bumpversion.toml
index e076631..0473eb8 100644
--- a/.bumpversion.toml
+++ b/.bumpversion.toml
@@ -1,5 +1,5 @@
 [tool.bumpversion]
-current_version = "0.3.1-dev1"
+current_version = "0.3.1-dev0"
 parse = """(?x)
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.
diff --git a/directlfq/__init__.py b/directlfq/__init__.py
index 93d2866..c18508e 100644
--- a/directlfq/__init__.py
+++ b/directlfq/__init__.py
@@ -1 +1 @@
-__version__ = "0.3.1-dev1"
\ No newline at end of file
+__version__ = "0.3.1-dev0"
\ No newline at end of file
diff --git a/release/linux/control b/release/linux/control
index 2d39d48..de66491 100644
--- a/release/linux/control
+++ b/release/linux/control
@@ -1,5 +1,5 @@
 Package: directlfq
-Version: 0.3.1-dev1
+Version: 0.3.1-dev0
 Architecture: all
 Maintainer: Mann Labs <opensource@alphapept.com>
 Description: directlfq
diff --git a/release/macos/Info.plist b/release/macos/Info.plist
index 2ca48bc..43cd135 100644
--- a/release/macos/Info.plist
+++ b/release/macos/Info.plist
@@ -9,9 +9,9 @@
 	<key>CFBundleIconFile</key>
 	<string>alpha_logo.icns</string>
 	<key>CFBundleIdentifier</key>
-	<string>directlfq.0.3.1-dev1</string>
+	<string>directlfq.0.3.1-dev0</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.1-dev1</string>
+	<string>0.3.1-dev0</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
diff --git a/release/macos/build_package_macos.sh b/release/macos/build_package_macos.sh
index 0925536..add09d0 100755
--- a/release/macos/build_package_macos.sh
+++ b/release/macos/build_package_macos.sh
@@ -30,5 +30,5 @@ cd -
 
 chmod 777 release/macos/scripts/*
 
-pkgbuild --root dist_pyinstaller/${PACKAGE_NAME} --identifier de.mpg.biochem.${PACKAGE_NAME}.app --version 0.3.1-dev1 --install-location /Applications/${PACKAGE_NAME}.app --scripts release/macos/scripts ${PACKAGE_NAME}.pkg
+pkgbuild --root dist_pyinstaller/${PACKAGE_NAME} --identifier de.mpg.biochem.${PACKAGE_NAME}.app --version 0.3.1-dev0 --install-location /Applications/${PACKAGE_NAME}.app --scripts release/macos/scripts ${PACKAGE_NAME}.pkg
 productbuild --distribution release/macos/distribution.xml --resources release/macos/Resources --package-path ${PACKAGE_NAME}.pkg ${BUILD_NAME}.pkg
diff --git a/release/macos/distribution.xml b/release/macos/distribution.xml
index 2228fe9..469ca9a 100644
--- a/release/macos/distribution.xml
+++ b/release/macos/distribution.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <installer-script minSpecVersion="1.000000">
-    <title>directlfq 0.3.1-dev1</title>
+    <title>directlfq 0.3.1-dev0</title>
     <background mime-type="image/png" file="alpha_logo.png" scaling="proportional"/>
     <welcome file="welcome.html" mime-type="text/html" />
     <conclusion file="conclusion.html" mime-type="text/html" />
diff --git a/release/windows/directlfq_innoinstaller.iss b/release/windows/directlfq_innoinstaller.iss
index 5e1b43c..a5cec55 100644
--- a/release/windows/directlfq_innoinstaller.iss
+++ b/release/windows/directlfq_innoinstaller.iss
@@ -5,7 +5,7 @@
 ; so all paths are given relative to the location of this .iss file.
 
 #define MyAppName "directlfq"
-#define MyAppVersion "0.3.1-dev1"
+#define MyAppVersion "0.3.1-dev0"
 #define MyAppPublisher "Max Planck Institute of Biochemistry and the University of Copenhagen, Mann Labs"
 #define MyAppURL "https://github.com/MannLabs/directlfq"
 #define MyAppExeName "directlfq_gui.exe"
diff --git a/settings.ini b/settings.ini
index 7ff6e8f..897d75d 100644
--- a/settings.ini
+++ b/settings.ini
@@ -13,7 +13,7 @@ author = Constantin Ammar
 author_email = constantin.ammar@gmail.com
 copyright = fast.ai
 branch = master
-version = 0.3.1-dev1
+version = 0.3.1-dev0
 min_python = 3.6
 audience = Developers
 language = English