diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ee6fcf1..c0a0424 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -35,7 +35,7 @@ repos:
 
 # Python formatting
 - repo: https://github.com/psf/black-pre-commit-mirror
-  rev: 24.1.1
+  rev: 24.2.0
   hooks:
   - id: black
 
@@ -55,7 +55,7 @@ repos:
 
 # C++ formatting
 - repo: https://github.com/pre-commit/mirrors-clang-format
-  rev: v17.0.6
+  rev: v18.1.1
   hooks:
   - id: clang-format
 
@@ -70,7 +70,7 @@ repos:
 
 # Python type checking
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: 'v1.8.0'
+  rev: 'v1.9.0'
   hooks:
   - id: mypy
     # additional_dependencies: [numpy]
diff --git a/src/core.cpp b/src/core.cpp
index 703467b..8def36d 100644
--- a/src/core.cpp
+++ b/src/core.cpp
@@ -498,10 +498,7 @@ PYBIND11_MODULE(_core, m) {
           overload_cast<GenCrossSectionPtr, GenEvent>(&GenEvent::cross_section),
           &GenEvent::set_cross_section, DOC(GenEvent.cross_section))
       .def_property(
-          "attributes",
-          [](GenEvent& self) {
-            return AttributesView{&self, 0};
-          },
+          "attributes", [](GenEvent& self) { return AttributesView{&self, 0}; },
           [](GenEvent& self, py::dict obj) {
             auto amv = AttributesView{&self, 0};
             py::cast(amv).attr("clear")();
diff --git a/src/repr.cpp b/src/repr.cpp
index a88e135..db78e27 100644
--- a/src/repr.cpp
+++ b/src/repr.cpp
@@ -77,13 +77,10 @@ std::ostream& repr_ostream(std::ostream& os, const HepMC3::GenEvent& x) {
   // incomplete:
   // missing comparison of GenHeavyIon, GenPdfInfo, GenCrossSection
 
-  os << "<GenEvent "
-     << "momentum_unit=" << x.momentum_unit() << ", "
-     << "length_unit=" << x.length_unit() << ", "
-     << "event_number=" << x.event_number() << ", "
-     << "particles=" << x.particles().size() << ", "
-     << "vertices=" << x.vertices().size() << ", "
-     << "run_info=";
+  os << "<GenEvent " << "momentum_unit=" << x.momentum_unit() << ", "
+     << "length_unit=" << x.length_unit() << ", " << "event_number=" << x.event_number()
+     << ", " << "particles=" << x.particles().size() << ", "
+     << "vertices=" << x.vertices().size() << ", " << "run_info=";
   repr_ostream(os, x.run_info()) << ">";
   return os;
 }