diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index e958e68..d486ff7 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -6,5 +6,3 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
-    assignees:
-      - "JeffFessler"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ad6140..164574f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,16 +27,33 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
       - uses: actions/checkout@v4
+
 #     - name: "Set up Julia"
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}
+
+      - name: Cache artifacts
+        uses: actions/cache@v4
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+
 #     - name: "Unit Test"
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
+
 #     - name: "Cover"
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v4
         if: ${{ matrix.version == '1' && matrix.os == 'ubuntu-latest' }}
         with:
           file: lcov.info
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/Project.toml b/Project.toml
index c67c53c..2753a8b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ImagePhantoms"
 uuid = "71a99df6-f52c-4da1-bd2a-69d6f37f3252"
 authors = ["Jeff Fessler <fessler@umich.edu> and contributors"]
-version = "0.8"
+version = "0.8.1"
 
 [deps]
 LazyGrids = "7031d0ef-c40d-4431-b2f8-61a8d2f650db"
@@ -9,6 +9,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 
 [compat]
-LazyGrids = "0.5, 1"
+LazyGrids = "1"
+Random = "1"
 SpecialFunctions = "1.8, 2"
 julia = "1.10"
diff --git a/README.md b/README.md
index de899ec..24c361b 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ https://github.com/JuliaImageRecon/ImagePhantoms.jl
 [![license][license-img]][license-url]
 [![docs-stable][docs-stable-img]][docs-stable-url]
 [![docs-dev][docs-dev-img]][docs-dev-url]
+[![Aqua QA][aqua-img]][aqua-url]
 [![code-style][code-blue-img]][code-blue-url]
 <img src="https://github.com/JuliaImageRecon/ImagePhantoms.jl/blob/main/docs/src/assets/logo.svg" alt="logo" width="150"/>
 
@@ -154,3 +155,5 @@ Tested with Julia ≥ 1.10.
 [docs-dev-url]: https://JuliaImageRecon.github.io/ImagePhantoms.jl/dev
 [license-img]: https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat
 [license-url]: LICENSE
+[aqua-img]: https://img.shields.io/badge/Aqua.jl-%F0%9F%8C%A2-aqua.svg
+[aqua-url]: https://github.com/JuliaTesting/Aqua.jl
diff --git a/docs/Project.toml b/docs/Project.toml
index 543b2b4..c9917bf 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,4 +11,4 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
-ImageGeoms = "0.10"
+ImageGeoms = "0.11"
diff --git a/src/object.jl b/src/object.jl
index bdbcfcc..46f4d59 100644
--- a/src/object.jl
+++ b/src/object.jl
@@ -116,13 +116,13 @@ function Object(
     shape::AbstractShape{D},
     _center::NTuple{D,RealU} = _tuple(0, D),
     _width::NTuple{D,RealU} = _tuple(1, D),
-    _angle::Union{RealU, NTuple{Da,RealU}} = _tuple(0, D == 2 ? 1 : 3),
+    _angle::Union{RealU, NTuple{Da,RealU}} where {Da} = _tuple(0, D == 2 ? 1 : 3),
     _value::Number = 1f0 ;
     center::NTuple{D,RealU} = _center,
     width::NTuple{D,RealU} = _width,
-    angle::Union{RealU, NTuple{Da,RealU}} = _angle,
+    angle::Union{RealU, NTuple{Da,RealU}} where {Da} = _angle,
     value::Number = _value,
-) where {D,Da}
+) where {D}
     Object{typeof(shape)}(center, width, angle, value)
 end
 
diff --git a/test/Project.toml b/test/Project.toml
index 56efc6c..7fb60a4 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -1,4 +1,5 @@
 [deps]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 FFTW = "7a1cc6ca-52ef-59f5-83cd-3a7055c09341"
 ImageGeoms = "9ee76f2b-840d-4475-b6d6-e485c9297852"
 LazyGrids = "7031d0ef-c40d-4431-b2f8-61a8d2f650db"
@@ -8,4 +9,4 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
-ImageGeoms = "0.10"
+ImageGeoms = "0.11"
diff --git a/test/aqua.jl b/test/aqua.jl
new file mode 100644
index 0000000..48414d8
--- /dev/null
+++ b/test/aqua.jl
@@ -0,0 +1,7 @@
+using ImagePhantoms: ImagePhantoms
+import Aqua
+using Test: @testset
+
+@testset "aqua" begin
+    Aqua.test_all(ImagePhantoms)
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index fb4e14d..f97ffc4 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,7 +1,9 @@
 # runtests.jl
 
 using Test: @test, @testset, detect_ambiguities
-using ImagePhantoms
+using ImagePhantoms: ImagePhantoms
+
+include("aqua.jl")
 
 include("helper.jl")