diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84d6fb9..e9ab6f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,19 +4,10 @@ on:
   push:
     branches:
       - master
-    paths:
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
-      - '.github/workflows/ci.yml'
+      - dev
   pull_request:
-    paths:
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
-
-env:
-  JULIA_NUM_THREADS: 1
+    branches:
+      - master
 
 jobs:
   test:
@@ -33,22 +24,14 @@ jobs:
           - windows-latest
           - macos-latest
         arch:
-          - x86
           - x64
-        exclude:
-          - os: ubuntu-latest
-            arch: x86
-          - os: macos-latest
-            arch: x86
-          - os: windows-latest
-            arch: x86
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
+      - uses: actions/cache@v3
         env:
           cache-name: cache-artifacts
         with:
@@ -59,34 +42,6 @@ jobs:
             ${{ runner.os }}-test-
             ${{ runner.os }}-
       - uses: julia-actions/julia-buildpkg@v1
-        env:
-          PYTHON: ""
       - uses: julia-actions/julia-runtest@v1
-        env:
-          PYTHON: ""
       - uses: julia-actions/julia-processcoverage@v1
-        env:
-          PYTHON: ""
-      - uses: codecov/codecov-action@v1
-        with:
-          file: ./lcov.info
-          flags: unittests
-          name: codecov-umbrella
-          fail_ci_if_error: false
-          token: ${{ secrets.CODECOV_TOKEN }}
-      - uses: coverallsapp/github-action@master
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          flag-name: run-${{ matrix.version }}-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.trixi_test }}
-          parallel: true
-          path-to-lcov: ./lcov.info
-
-  finish:
-    needs: test
-    runs-on: ubuntu-latest
-    steps:
-      - name: Coveralls Finished
-        uses: coverallsapp/github-action@master
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          parallel-finished: true
+      - uses: codecov/codecov-action@v4
diff --git a/.github/workflows/ci_nightly.yml b/.github/workflows/ci_nightly.yml
deleted file mode 100644
index 2b012b1..0000000
--- a/.github/workflows/ci_nightly.yml
+++ /dev/null
@@ -1,65 +0,0 @@
-name: CI_nightly
-
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
-      - '.github/workflows/ci_nightly.yml'
-  pull_request:
-    paths:
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
-
-env:
-  JULIA_NUM_THREADS: 1
-
-jobs:
-  test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        version:
-          - 'nightly'
-        os:
-          - ubuntu-latest
-          - windows-latest
-          - macos-latest
-        arch:
-          - x86
-          - x64
-        exclude:
-          - os: ubuntu-latest
-            arch: x86
-          - os: macos-latest
-            arch: x86
-          - os: windows-latest
-            arch: x86
-    steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@v1
-        with:
-          version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
-        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 }}-
-      - uses: julia-actions/julia-buildpkg@v1
-        env:
-          PYTHON: ""
-      - uses: julia-actions/julia-runtest@v1
-        env:
-          PYTHON: ""
diff --git a/README.md b/README.md
index e1fc4ab..f6deb5d 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,6 @@ HierarchicalUtils.jl is a package providing abstract functionality over hierarch
 
 [![License](https://img.shields.io/badge/License-MIT-blue.svg)](https://github.com/CTUAvastLab/HierarchicalUtils.jl/blob/master/LICENSE)
 [![Build Status](https://github.com/CTUAvastLab/HierarchicalUtils.jl/workflows/CI/badge.svg)](https://github.com/CTUAvastLab/HierarchicalUtils.jl/actions?query=workflow%3ACI)
-[![Coverage Status](https://coveralls.io/repos/github/CTUAvastLab/HierarchicalUtils.jl/badge.svg?branch=master)](https://coveralls.io/github/CTUAvastLab/HierarchicalUtils.jl?branch=master)
 [![codecov.io](http://codecov.io/github/CTUAvastLab/HierarchicalUtils.jl/coverage.svg?branch=master)](http://codecov.io/github/CTUAvastLab/HierarchicalUtils.jl?branch=master)
 
 ## How it works