diff --git a/README.md b/README.md
index 69c57acb2..a7d5b6d10 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ models for [AixLib](https://github.com/RWTH-EBC/AixLib) and
 
 ## Version
 
-TEASER is a ongoing research project, the current version is 0.5.3, which is
+TEASER is a ongoing research project, the current version is 0.5.4, which is
 still a pre-release.
 
 ## How to use TEASER
diff --git a/doc/conf.py b/doc/conf.py
index 3d45090fb..8aaaeed17 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -60,7 +60,7 @@
 # The short X.Y version.
 version = '0.5.'
 # The full version, including alpha/beta/rc tags.
-release = '0.5.3'
+release = '0.5.4'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index 656e03fbe..dfee17beb 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from sys import platform
 
 setup(name='teaser',
-      version='0.5.3',
+      version='0.5.4',
       description='Tool for Energy Analysis and Simulation for '
                   'Efficient Retrofit ',
       url='https://github.com/RWTH-EBC/TEASER',
diff --git a/teaser/logic/buildingobjects/calculation/aixlib.py b/teaser/logic/buildingobjects/calculation/aixlib.py
index caec1a4c8..7479853d4 100644
--- a/teaser/logic/buildingobjects/calculation/aixlib.py
+++ b/teaser/logic/buildingobjects/calculation/aixlib.py
@@ -62,7 +62,7 @@ def __init__(self, parent):
         self.file_set_t = "Tset_" + self.parent.name + ".mat"
         self.file_ahu = "AHU_" + self.parent.name + ".mat"
         self.file_internal_gains = "InternalGains_" + self.parent.name + ".mat"
-        self.version = "0.4.0"
+        self.version = "0.5.2"
         self.total_surface_area = None
         self.consider_heat_capacity = True
         self.use_set_back = True