diff --git a/.github/workflows/Dockerfile_opengate_core b/.github/workflows/Dockerfile_opengate_core
index 1ec506858..d6bca126d 100644
--- a/.github/workflows/Dockerfile_opengate_core
+++ b/.github/workflows/Dockerfile_opengate_core
@@ -24,7 +24,7 @@ RUN     yum install -y gcc wget git expat-devel fftw-devel qt6-qtbase-devel free
 
 #Compile Geant4
     &&  cd /software/geant4 \
-    &&  git clone --branch v11.4.0 https://github.com/Geant4/geant4.git --depth 1 src \
+    &&  git clone --branch v11.4.2 https://github.com/Geant4/geant4.git --depth 1 src \
     &&  cd bin \
     && . /opt/rh/gcc-toolset-14/enable \
     &&  cmake -DCMAKE_CXX_FLAGS=-std=c++17 -DGEANT4_BUILD_MULTITHREADED=ON -DGEANT4_USE_GDML=ON -DGEANT4_INSTALL_DATA=OFF -DGEANT4_USE_QT=ON -DGEANT4_USE_OPENGL_X11=ON -DGEANT4_USE_QT_QT6=ON -DGEANT4_BUILD_TLS_MODEL=global-dynamic ../src \
diff --git a/.github/workflows/Dockerfile_opengate_core_arm64 b/.github/workflows/Dockerfile_opengate_core_arm64
index 31b927b27..e0e41a22e 100644
--- a/.github/workflows/Dockerfile_opengate_core_arm64
+++ b/.github/workflows/Dockerfile_opengate_core_arm64
@@ -27,7 +27,7 @@ RUN     yum install -y gcc wget git expat-devel fftw-devel qt6-qtbase-devel free
 
 #Compile Geant4
     &&  cd /software/geant4 \
-    &&  git clone --branch v11.4.0 https://github.com/Geant4/geant4.git --depth 1 src \
+    &&  git clone --branch v11.4.2 https://github.com/Geant4/geant4.git --depth 1 src \
     &&  cd bin \
     && . /opt/rh/gcc-toolset-14/enable \
     &&  cmake -DCMAKE_CXX_FLAGS=-std=c++17 -DGEANT4_BUILD_MULTITHREADED=ON -DGEANT4_USE_GDML=ON -DGEANT4_INSTALL_DATA=OFF -DGEANT4_USE_QT=ON -DGEANT4_USE_OPENGL_X11=ON -DGEANT4_USE_QT_QT6=ON -DGEANT4_BUILD_TLS_MODEL=global-dynamic ../src \
diff --git a/.github/workflows/Dockerfile_opengate_core_novis b/.github/workflows/Dockerfile_opengate_core_novis
index 1fb28f017..6b84f15bd 100644
--- a/.github/workflows/Dockerfile_opengate_core_novis
+++ b/.github/workflows/Dockerfile_opengate_core_novis
@@ -24,7 +24,7 @@ RUN     yum install -y gcc wget git expat-devel fftw-devel freeglut-devel libXmu
 
 #Compile Geant4
     &&  cd /software/geant4 \
-    &&  git clone --branch v11.4.0 https://github.com/Geant4/geant4.git --depth 1 src \
+    &&  git clone --branch v11.4.2 https://github.com/Geant4/geant4.git --depth 1 src \
     &&  cd bin \
     &&  cmake -DCMAKE_CXX_FLAGS=-std=c++17 -DGEANT4_BUILD_MULTITHREADED=ON -DGEANT4_USE_GDML=OFF -DGEANT4_INSTALL_DATA=OFF -DGEANT4_USE_QT=OFF -DGEANT4_USE_OPENGL_X11=OFF -DGEANT4_BUILD_TLS_MODEL=global-dynamic ../src \
     &&  make -j10 \
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9404ca9dc..3832041b8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 env:
-  GEANT4_VERSION: 'v11.4.0'
+  GEANT4_VERSION: 'v11.4.2'
   ITK_VERSION: 'v5.4.4'
 
 jobs:
@@ -234,7 +234,7 @@ jobs:
 
 #  ssh_session:
 #    env:
-#      GEANT4_VERSION: 'v11.4.0'
+#      GEANT4_VERSION: 'v11.4.2'
 #      ITK_VERSION: 'v5.4.4'
 #    runs-on: macos-13
 #    steps:
diff --git a/opengate/tests/src/actors/test037_pet_hits_singles_1.py b/opengate/tests/src/actors/test037_pet_hits_singles_1.py
index 910a919a7..04d8e0c29 100755
--- a/opengate/tests/src/actors/test037_pet_hits_singles_1.py
+++ b/opengate/tests/src/actors/test037_pet_hits_singles_1.py
@@ -53,7 +53,7 @@
     gate.exception.warning(f"Check stats")
     p = paths.gate / "output"
     stats_ref = utility.read_stats_file(p / "stats1.txt")
-    is_ok = utility.assert_stats(stats, stats_ref, [0.028, 0.028, 0.053])
+    is_ok = utility.assert_stats(stats, stats_ref, [0.028, 0.028, 0.058])
 
     # check root hits
     hc = sim.get_actor("Hits")
diff --git a/opengate/tests/src/physics/test013_phys_lists_4.py b/opengate/tests/src/physics/test013_phys_lists_4.py
index d725c5ac9..1688b1758 100755
--- a/opengate/tests/src/physics/test013_phys_lists_4.py
+++ b/opengate/tests/src/physics/test013_phys_lists_4.py
@@ -56,6 +56,6 @@
     print("Reference file", f)
     stats_ref = utility.read_stats_file(f)
     print(stats_ref)
-    is_ok = utility.assert_stats(stats, stats_ref, tolerance=[0.12, 0.12, 0.16])
+    is_ok = utility.assert_stats(stats, stats_ref, tolerance=[0.12, 0.12, 0.19])
 
     utility.test_ok(is_ok)