diff --git a/Tests/UnitTests/Core/Vertexing/AMVFTestData.ipp b/Tests/UnitTests/Core/Vertexing/AMVFTestData.ipp
index f16726c13223abc5b99c54ab9d9c3207fa5fca91..efb94b0bed3881f794ec97643fad6db50c4b9845 100644
--- a/Tests/UnitTests/Core/Vertexing/AMVFTestData.ipp
+++ b/Tests/UnitTests/Core/Vertexing/AMVFTestData.ipp
@@ -24,8 +24,8 @@ using Covariance = Acts::BoundSymMatrix;
 
 GeometryContext gctx = GeometryContext();
 // Return all tracks of one single event as reconstructed in athena.
-std::vector<const BoundParameters> getAthenaTracks() {
-  std::vector<const BoundParameters> tracks;
+std::vector<BoundParameters> getAthenaTracks() {
+  std::vector<BoundParameters> tracks;
 
   std::shared_ptr<PerigeeSurface> perigeeSurface =
       Surface::makeShared<PerigeeSurface>(Vector3D(0, 0, 0));
diff --git a/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFinderTests.cpp b/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFinderTests.cpp
index a43117db22b58a522b5340c2e9968d3910f5aca0..105c59607d349d20486621ca7a05e116fa4c1277 100644
--- a/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFinderTests.cpp
+++ b/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFinderTests.cpp
@@ -101,7 +101,7 @@ BOOST_AUTO_TEST_CASE(adaptive_multi_vertex_finder_test) {
 
   Finder finder(finderConfig);
 
-  std::vector<const BoundParameters> tracks = getAthenaTracks();
+  auto tracks = getAthenaTracks();
 
   if (debugMode) {
     std::cout << "Number of tracks in event: " << tracks.size() << std::endl;
diff --git a/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFitterTests.cpp b/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFitterTests.cpp
index 5d482bf36f2aa09220531b60002acf41899e9fe4..92a38873ced4d333f8276f797906d486416094a3 100644
--- a/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFitterTests.cpp
+++ b/Tests/UnitTests/Core/Vertexing/AdaptiveMultiVertexFitterTests.cpp
@@ -135,7 +135,7 @@ BOOST_AUTO_TEST_CASE(adaptive_multi_vertex_fitter_test) {
     vtxPtrList.push_back(&vtx);
   }
 
-  std::vector<const BoundParameters> allTracks;
+  std::vector<BoundParameters> allTracks;
 
   unsigned int nTracksPerVtx = 4;
   // Construct nTracksPerVtx * 3 (3 vertices) random track emerging