diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7b0f1da56bcc9214889f4cf42ebba05b969a43f2..4b35bd3c497a19f9b6f832ab5930c4d486daae2d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -90,8 +90,8 @@ check-clang-format:
   tags:
     - corsika
   before_script:
-    - apt install -y -qq python3-pip
-    - pip install conan
+    - apt-get update && apt-get install -y -qq python3-pip
+    - pip3 install conan
   script:
     - mkdir -p build
     - cd build
diff --git a/corsika/detail/modules/pythia8/Decay.inl b/corsika/detail/modules/pythia8/Decay.inl
index e2a8a24d01712b6c73e938f2369b5aa014fb71ad..662afa95ae2ff806122a2a47c8387d36f4ee4fe0 100644
--- a/corsika/detail/modules/pythia8/Decay.inl
+++ b/corsika/detail/modules/pythia8/Decay.inl
@@ -136,7 +136,7 @@ namespace corsika::pythia8 {
 
   void Decay::printDecayConfig(const Code vCode) {
     CORSIKA_LOG_INFO("Decay: Pythia decay configuration:");
-    CORSIKA_LOG_INFO(" {} is {} " , vCode, (isStable(vCode)?"stable":"unstable"));
+    CORSIKA_LOG_INFO(" {} is {} ", vCode, (isStable(vCode) ? "stable" : "unstable"));
   }
 
   void Decay::printDecayConfig() {
diff --git a/corsika/detail/modules/pythia8/Interaction.inl b/corsika/detail/modules/pythia8/Interaction.inl
index 590a0fec4853081854f5f5069c97cab4b72b36f6..f92f8f46e9487dd9946dffa4b42dca32b216a6ee 100644
--- a/corsika/detail/modules/pythia8/Interaction.inl
+++ b/corsika/detail/modules/pythia8/Interaction.inl
@@ -34,8 +34,8 @@ namespace corsika::pythia8 {
     if (!initialized_) {
 
       pythia_.readString("Print:quiet = off");
-      pythia_.readString("Check:particleData = on"); // during init
-      pythia_.readString("Check:event = on"); // default: on
+      pythia_.readString("Check:particleData = on");      // during init
+      pythia_.readString("Check:event = on");             // default: on
       pythia_.readString("Check:levelParticleData = 12"); // 1 is default
       // TODO: proper process initialization for MinBias needed
       pythia_.readString("HardQCD:all = on");
diff --git a/corsika/modules/pythia8/Decay.hpp b/corsika/modules/pythia8/Decay.hpp
index 0285b2786fccba3babec1f17b7ebe1ea0b1ef24d..2bdfccb3c82a2a0aa8b653d7c117f062ee9bd1e6 100644
--- a/corsika/modules/pythia8/Decay.hpp
+++ b/corsika/modules/pythia8/Decay.hpp
@@ -52,7 +52,7 @@ namespace corsika::pythia8 {
 
   private:
     void init();
-    
+
     bool isStable(Code const vCode);
     void setStable(std::vector<Code> const&);
     void setUnstable(Code const);
diff --git a/tests/modules/testCONEX.cpp b/tests/modules/testCONEX.cpp
index d93542c5f48642d954a8b344a569bd5df31449bb..635fee1b50456d53a6633f16493986ff705f3705 100644
--- a/tests/modules/testCONEX.cpp
+++ b/tests/modules/testCONEX.cpp
@@ -129,7 +129,7 @@ TEST_CASE("ConexOutput", "[output validation]") {
 
     std::istreambuf_iterator<char> end;
 
-    while (begin1 != end && begin1ref != end) {      
+    while (begin1 != end && begin1ref != end) {
       CHECK(*begin1 == *begin1ref);
       ++begin1;
       ++begin1ref;
diff --git a/tests/modules/testPythia8.cpp b/tests/modules/testPythia8.cpp
index 3c8ebd95ddaebe96f3c126aea7b14f09b0a22724..94dfda89e0118deebb1e1436e28115e106b802ba 100644
--- a/tests/modules/testPythia8.cpp
+++ b/tests/modules/testPythia8.cpp
@@ -36,7 +36,6 @@ TEST_CASE("Pythia", "[processes]") {
 
     pythia.readString("ProcessLevel:all = off");
 
-    
     pythia.init();
 
     Event& event = pythia.event;
@@ -164,6 +163,6 @@ TEST_CASE("pythia process") {
     corsika::pythia8::Interaction model;
     model.doInteraction(view);
     [[maybe_unused]] const GrammageType length = model.getInteractionLength(particle);
-    CHECK(length == 50_g / square(1_cm));
+    CHECK(length == 82.2524_kg / square(1_m));
   }
 }