diff --git a/cmake/PyiglDependencies.cmake b/cmake/PyiglDependencies.cmake
index d01f663f..3107b07e 100644
--- a/cmake/PyiglDependencies.cmake
+++ b/cmake/PyiglDependencies.cmake
@@ -19,7 +19,7 @@ include(FetchContent)
 FetchContent_Declare(
     libigl
     GIT_REPOSITORY https://github.com/libigl/libigl.git
-    GIT_TAG 78015d4da1c6799dfe15659ed35adfb3a5f23ffa
+    GIT_TAG 7e5512ce71d7394ba965964f66e9a9d91597e767
 )
 FetchContent_GetProperties(libigl)
 FetchContent_MakeAvailable(libigl)
diff --git a/src/copyleft/cgal/convex_hull.cpp b/src/copyleft/cgal/convex_hull.cpp
index 8e225e95..8bb3bbfe 100644
--- a/src/copyleft/cgal/convex_hull.cpp
+++ b/src/copyleft/cgal/convex_hull.cpp
@@ -22,10 +22,7 @@ npe_arg(v, dense_float, dense_double)
 npe_begin_code()
 
   EigenDenseInt g;
-  // when https://github.com/libigl/libigl/pull/1989 is merged this copy should
-  // be removed
-  Eigen::MatrixXd v_copy = v.template cast<double>();
-  igl::copyleft::cgal::convex_hull(v_copy, g);
+  igl::copyleft::cgal::convex_hull(v, g);
   return npe::move(g);
 
 npe_end_code()