diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index c94f60e..84cef1d 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -44,7 +44,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
         with:
-          version: '1'
+          version: '1.9'
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-docdeploy@v1
         env:
diff --git a/src/MParT.jl b/src/MParT.jl
index 7931dd8..708fab6 100644
--- a/src/MParT.jl
+++ b/src/MParT.jl
@@ -320,9 +320,12 @@ end
 
 
 """
-    TriangularMap(maps::Vector)
+    TriangularMap(maps::Vector, move_coeffs::Bool = true)
 Creates a `TriangularMap` from a vector of `ConditionalMapBase` objects.
 
+The new object takes ownership of the coeffs of the maps in `maps` if
+`move_coeffs` is true.
+
 # Examples
 ```jldoctest
 julia> dim, order = 5, 3;
@@ -336,9 +339,9 @@ julia> components = [CreateComponent(mset, opts) for mset in msets];
 julia> trimap = TriangularMap(components);
 ```
 """
-function TriangularMap(maps::Vector)
+function TriangularMap(maps::Vector, move_coeffs::Bool = true)
     maps = StdVector([map for map in maps])
-    TriangularMap(maps)
+    TriangularMap(maps, move_coeffs)
 end
 
 """