diff --git a/engine/BUILD.bazel b/engine/BUILD.bazel
index dd12358e616cf6a927806fd00cbf3c250e6fcf1f..2fd7a52323153d32ea8b4084cc522ff7ba919caf 100644
--- a/engine/BUILD.bazel
+++ b/engine/BUILD.bazel
@@ -28,7 +28,7 @@ cc_library(
     ],
     visibility = ["//visibility:public"],
     deps = [
-        "@//third_party/nlohmann_json",
+        "@@//third_party/nlohmann_json",
         "@mantle_api",
         "@open_scenario_parser",
         "@stochastics_library",
@@ -196,7 +196,7 @@ cc_test(
         ":open_scenario_engine",
         ":open_scenario_engine_test_utils",
         ":test_utils",
-        "@//third_party/nlohmann_json",
+        "@@//third_party/nlohmann_json",
         "@googletest//:gtest_main",
         "@mantle_api//:test_utils",
     ],
diff --git a/engine/src/Storyboard/MotionControlAction/SpeedAction_impl.cpp b/engine/src/Storyboard/MotionControlAction/SpeedAction_impl.cpp
index 6d5cee6207ba28299115ad58fda0875155c99190..730a4593059b852086b41c52cbffc1542f75d33f 100644
--- a/engine/src/Storyboard/MotionControlAction/SpeedAction_impl.cpp
+++ b/engine/src/Storyboard/MotionControlAction/SpeedAction_impl.cpp
@@ -48,7 +48,7 @@ void AddLinearVelocitySplineSection(std::vector<mantle_api::SplineSection<units:
   const auto linear_section_start_speed{is_first_section ? start_speed : GetYOfVelocityPolynomial(linear_section_start_time, spline_sections[0].polynomial)};
   const auto linear_section_duration{units::math::abs(target_speed - linear_section_start_speed) / acceleration};
 
-  mantle_api::SplineSection<units::velocity::meters_per_second> linear_section;
+  mantle_api::SplineSection<units::velocity::meters_per_second> linear_section{};
   linear_section.start_time = linear_section_start_time;
   linear_section.end_time = linear_section_start_time + linear_section_duration;
   auto& [a, b, c, d] = linear_section.polynomial;
@@ -64,7 +64,7 @@ void AddInitialSquaredAccelerationSplineSection(std::vector<mantle_api::SplineSe
                                                 const Acceleration& target_acceleration,
                                                 const Jerk& jerk_limit)
 {
-  mantle_api::SplineSection<units::velocity::meters_per_second> squared_deceleration_section;
+  mantle_api::SplineSection<units::velocity::meters_per_second> squared_deceleration_section{};
   squared_deceleration_section.start_time = 0.0_ms;
   squared_deceleration_section.end_time = target_acceleration / jerk_limit;
   auto& [a, b, c, d] = squared_deceleration_section.polynomial;
@@ -80,7 +80,7 @@ void AddFinalSquaredAccelerationSplineSection(std::vector<mantle_api::SplineSect
                                               const Acceleration& target_acceleration,
                                               const Jerk& jerk_limit)
 {
-  mantle_api::SplineSection<units::velocity::meters_per_second> squared_acceleration_section;
+  mantle_api::SplineSection<units::velocity::meters_per_second> squared_acceleration_section{};
   auto& [_, b, c, d] = squared_acceleration_section.polynomial;
   b = 0.5 * jerk_limit;
   c = -1.0 * target_acceleration;
@@ -106,7 +106,7 @@ void AddFinalSquaredDecelerationSplineSection(std::vector<mantle_api::SplineSect
                                               const Acceleration& target_acceleration,
                                               const Jerk& jerk_limit)
 {
-  mantle_api::SplineSection<units::velocity::meters_per_second> squared_deceleration_section;
+  mantle_api::SplineSection<units::velocity::meters_per_second> squared_deceleration_section{};
   auto& [_, b, c, d] = squared_deceleration_section.polynomial;
   b = -0.5 * jerk_limit;
   c = target_acceleration;
@@ -278,7 +278,7 @@ void SpeedAction::SetLinearVelocitySplineControlStrategy(const std::string& acto
   const auto start_speed{entity->GetVelocity().Length()};
   const auto target_speed = values.GetSpeedActionTarget();
 
-  mantle_api::SplineSection<units::velocity::meters_per_second> spline_section;
+  mantle_api::SplineSection<units::velocity::meters_per_second> spline_section{};
   spline_section.start_time = 0.0_ms;
 
   if (mantle_api::AlmostEqual(start_speed, target_speed))