diff --git a/Dockerfile b/Dockerfile
index 7e3068c..6be4882 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,8 @@ RUN apt-get update \
 # install prerequesites for ortools
 RUN apt-get update && \
     apt-get -y install --no-install-recommends \
-    openjdk-8-jre \
+    openjdk-11-jre \
+    git \
     && \
     : "remove cache" && \
     apt-get autoremove -y -qq && \
@@ -22,11 +23,17 @@ RUN apt-get update && \
 COPY . /ortools
 WORKDIR /ortools
 
+# install orhelper fork
+RUN mkdir /projects && cd /projects && \
+    git clone https://github.com/SpaceTeam/orhelper.git && \
+    cd orhelper && \
+    pip install -e .
+
 # install ortools
 RUN pip install -e .
 
 # get OR
-RUN wget https://github.com/openrocket/openrocket/releases/download/release-15.03/OpenRocket-15.03.jar
+RUN wget https://github.com/openrocket/openrocket/releases/download/release-22.02/OpenRocket-22.02.jar
 
 # default command
 CMD diana -c examples/dispersion_analysis.ini
\ No newline at end of file
diff --git a/src/ortools/dispersion_analysis.py b/src/ortools/dispersion_analysis.py
index 26c7acb..53ca6eb 100644
--- a/src/ortools/dispersion_analysis.py
+++ b/src/ortools/dispersion_analysis.py
@@ -25,7 +25,7 @@
 
 from shapely.geometry import Point, Polygon
 
-DIANA_RELEASE = "1.2.0"
+DIANA_RELEASE = "1.3.0"
 
 # -- plot options
 plt.style.use("default")
@@ -163,7 +163,7 @@ def diana(directory, filename, config, output,
             options.getLaunchAltitude())
         logging.info("Launch Point {} found.".format(launch_point))
 
-        rocket = options.getRocket()
+        rocket = sim.getRocket()
         num_stages = rocket.getChildCount()
         print("Rocket has {} stage(s):".format(num_stages))
         stage_names = [r.getName() for r in rocket.getChildren()]
@@ -331,8 +331,8 @@ def set_up_random_parameters(orh, sim, config):
     Cside_factor_stddev = float(config["Aerodynamics"]["CsideFactor"])
     CN_factor_stddev = float(config["Aerodynamics"]["CNFactor"])
 
-    mcid = options.getMotorConfigurationID()
-    rocket = options.getRocket()
+    rocket = sim.getRocket()
+    mcid = sim.getFlightConfigurationId()
     num_stages = rocket.getChildCount()
     stages = []
     stage_separation_delays_max = []
@@ -357,7 +357,7 @@ def set_up_random_parameters(orh, sim, config):
             stage_separation_delays_min.append(separationDelay)
 
     # MassCalculation
-    refLen = rocket.getReferenceType().getReferenceLength(sim.getConfiguration())
+    refLen = rocket.getReferenceType().getReferenceLength(sim.getActiveConfiguration())
     if (config.has_section("MassCalculation")):
         if(config.has_option(
                 "MassCalculation", "CG")):
@@ -545,10 +545,10 @@ def randomize_simulation(open_rocket_helper, sim, rocket_components,
     options.setLaunchIntoWind(False)
     options.setLaunchRodDirection(azimuth_result)
 
-    mcid = options.getMotorConfigurationID()
-    rocket = options.getRocket()
+    mcid = options.getFlightConfigurationId()
+    rocket = sim.getRocket()
     num_stages = rocket.getChildCount()
-    # set stage sepration
+    # set stage separation
     for (
             stage,
             stage_separation_delay) in zip(
@@ -663,8 +663,8 @@ def get_simulation_parameters(open_rocket_helper, sim, rocket_components,
     logging.info("CN factor = {:6.2f}".format(CN_factor))
     logging.info("Cside factor = {:6.2f}".format(Cside_factor))
 
-    mcid = options.getMotorConfigurationID()
-    rocket = options.getRocket()
+    mcid = options.getFlightConfigurationId()
+    rocket = sim.getRocket()
 
     # stage sepration
     separationDelays = []
@@ -793,7 +793,7 @@ def run_simulation(
 
     if branch_ct == num_stages:
         for branch_nr in range(branch_ct):
-            # was there any exception thrown? -> skip results fo this stage
+            # was there any exception thrown? -> skip results for this stage
             events = sim.getSimulatedData().getBranch(branch_nr).getEvents()
             for ev in events:
                 # how do I get the source of the exception?