diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 82fa6f5..fa9a38a 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -7,11 +7,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        COMPILER: [gcc10, clang11]
-        LCG: [100]
+        COMPILER: [gcc11]
+        LCG: [104]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cvmfs-contrib/github-action-cvmfs@v3
     - uses: aidasoft/run-lcg-view@v4
       with:
@@ -23,4 +23,4 @@ jobs:
           cmake -GNinja -C ${ILCSOFT}/ILCSoft.cmake -DCMAKE_CXX_FLAGS=" -fdiagnostics-color=always " ..
           ninja -k0
           ninja install
-          ctest --output-on-failure
+          ctest --output-on-failure -j 2
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 30d8d9c..0bf4f2b 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -101,8 +101,10 @@ ADD_TEST( NAME t_${test_name}
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../clicConfig/
   CONFIGURATIONS TRUTH
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error" )
-
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${CLIC_DETECTOR_MODEL}_sim
+)
 
 SET( test_name "test_${CLIC_DETECTOR_MODEL}_reco_conformal" )
 ADD_TEST( NAME t_${test_name}
@@ -116,7 +118,10 @@ ADD_TEST( NAME t_${test_name}
   --Output_DST.LCIOOutputFile=reco_conformal_${CLIC_DETECTOR_MODEL}_dst.slcio
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../clicConfig/
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error" )
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${CLIC_DETECTOR_MODEL}_sim
+)
 
 SET( test_name "test_${CLIC_DETECTOR_MODEL}_vtx_makentp" )
 ADD_TEST( NAME t_${test_name}
@@ -128,7 +133,10 @@ ADD_TEST( NAME t_${test_name}
   vtx_makentp.xml
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../Flavour_tagging/
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error" )
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${CLIC_DETECTOR_MODEL}_sim
+)
 
 SET( test_name "test_${CLIC_DETECTOR_MODEL}_reco_real_overlay" )
 ADD_TEST( NAME t_${test_name}
@@ -147,6 +155,7 @@ ADD_TEST( NAME t_${test_name}
   )
 SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
   FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${CLIC_DETECTOR_MODEL}_sim
   REQUIRED_FILES ${EOS_BACKGROUND_FILE}
 )
 
@@ -437,7 +446,10 @@ ADD_TEST( NAME t_${test_name}
   --outputFile=test${FCCee_DETECTOR_MODEL}.slcio --gun.isotrop=true --steeringFile=${CMAKE_CURRENT_SOURCE_DIR}/../fcceeConfig/fcc_steer.py
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../fcceeConfig/
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;ERROR;Error" )
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;ERROR;Error"
+  DEPENDS test_${FCCee_DETECTOR_MODEL}_sim
+)
  
 SET( test_name "test_${FCCee_DETECTOR_MODEL}_reco_truth" )
 ADD_TEST( NAME t_${test_name}
@@ -452,7 +464,10 @@ ADD_TEST( NAME t_${test_name}
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../fcceeConfig/
   CONFIGURATIONS TRUTH
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error" )
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${FCCee_DETECTOR_MODEL}_sim
+)
  
 SET( test_name "test_${FCCee_DETECTOR_MODEL}_reco_conformal" )
 ADD_TEST( NAME t_${test_name}
@@ -466,4 +481,7 @@ ADD_TEST( NAME t_${test_name}
   --Output_DST.LCIOOutputFile=reco_conformal_dst.slcio
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../fcceeConfig/
   )
-SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error" )
+SET_TESTS_PROPERTIES( t_${test_name} PROPERTIES
+  FAIL_REGULAR_EXPRESSION  "Exception;EXCEPTION;\\[ ERROR;Error"
+  DEPENDS test_${FCCee_DETECTOR_MODEL}_sim
+)