diff --git a/.github/workflows/install.yml b/.github/workflows/install.yml
index 30058f8..c2bb525 100644
--- a/.github/workflows/install.yml
+++ b/.github/workflows/install.yml
@@ -3,10 +3,10 @@ name: Install
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1
@@ -14,7 +14,7 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     env:
       CPP_STANDARD: 20
@@ -32,7 +32,7 @@ jobs:
         with:
           version: 11
           platform: x64
-          
+
       - name: build and install library
         run: |
           cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release -DTP_BUILD_EXAMPLES=OFF -DTP_BUILD_TESTS=ON -DTP_BUILD_BENCHMARKS=OFF -DCMAKE_INSTALL_PREFIX="/usr/local"
diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index 10566a7..67ac01a 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -3,17 +3,17 @@ name: Style
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules
 
 jobs:
   build:
-    runs-on: windows-2019
+    runs-on: windows-latest
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index cbc6884..de49287 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -3,10 +3,10 @@ name: Ubuntu
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1
@@ -22,7 +22,7 @@ jobs:
     strategy:
         fail-fast: false
         matrix:
-            os: [ubuntu-20.04, ubuntu-latest]
+            os: [ubuntu-22.04, ubuntu-latest]
             version: [11]
             include:
               - os: ubuntu-latest
@@ -72,14 +72,14 @@ jobs:
 
   build-clang:
     name: "clang-${{matrix.version}}"
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     env:
       CPP_STANDARD: 20
     strategy:
       fail-fast: false
       max-parallel: 4
       matrix:
-        version: [14, 15, 16, 17, 18]
+        version: [14, 15, 16, 17, 18, 19]
          
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index e3b7e49..82a70ae 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -3,10 +3,10 @@ name: Windows
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1
diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index b3c3c70..a23955f 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -15,7 +15,7 @@ CPMAddPackage(
     GIT_SHALLOW
 )
 
-CPMAddPackage("gh:doctest/doctest@2.4.11")
+CPMAddPackage("gh:doctest/doctest@2.4.12")
 CPMAddPackage(
     NAME bshoshany
     GITHUB_REPOSITORY bshoshany/thread-pool
diff --git a/cmake/CPM.cmake b/cmake/CPM.cmake
index 37550b6..c961ea6 100644
--- a/cmake/CPM.cmake
+++ b/cmake/CPM.cmake
@@ -1,4 +1,4 @@
-set(CPM_DOWNLOAD_VERSION 0.40.2)
+set(CPM_DOWNLOAD_VERSION 0.42.0)
 
 if(CPM_SOURCE_CACHE)
     # Expand relative path. This is important if the provided path contains a tilde (~)
diff --git a/examples/mandelbrot/CMakeLists.txt b/examples/mandelbrot/CMakeLists.txt
index 45a0789..dae8396 100644
--- a/examples/mandelbrot/CMakeLists.txt
+++ b/examples/mandelbrot/CMakeLists.txt
@@ -12,7 +12,7 @@ include(../../cmake/CPM.cmake)
 
 CPMAddPackage(
     GITHUB_REPOSITORY jarro2783/cxxopts
-    VERSION 2.2.1
+    VERSION 3.3.1
     OPTIONS "CXXOPTS_BUILD_EXAMPLES NO" "CXXOPTS_BUILD_TESTS NO" "CXXOPTS_ENABLE_INSTALL YES"
 )
 
diff --git a/examples/mandelbrot/source/main.cpp b/examples/mandelbrot/source/main.cpp
index 38147ad..2e7f09c 100644
--- a/examples/mandelbrot/source/main.cpp
+++ b/examples/mandelbrot/source/main.cpp
@@ -83,7 +83,7 @@ auto main(int argc, char **argv) -> int {
 
         mandelbrot_threadpool(image_size, image_size, max_iterations, output_file_name);
 
-    } catch (const cxxopts::OptionException &e) {
+    } catch (const cxxopts::exceptions::exception &e) {
         std::cout << "error parsing options: " << e.what() << std::endl;
         exit(1);
     }
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 60d5d3f..1fe084b 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -13,10 +13,10 @@ include(../cmake/tools.cmake)
 
 include(../cmake/CPM.cmake)
 
-CPMAddPackage("gh:doctest/doctest@2.4.11")
+CPMAddPackage("gh:doctest/doctest@2.4.12")
 CPMAddPackage(
   NAME Format.cmake
-  VERSION 1.7.3
+  VERSION 1.8.3
   GITHUB_REPOSITORY TheLartians/Format.cmake
   OPTIONS 
       # skip CMake formatting for now
diff --git a/test/source/thread_pool.cpp b/test/source/thread_pool.cpp
index 1cffabb..48c1a64 100644
--- a/test/source/thread_pool.cpp
+++ b/test/source/thread_pool.cpp
@@ -6,6 +6,7 @@
 #include <algorithm>
 #include <array>
 #include <barrier>
+#include <chrono>
 #include <iostream>
 #include <numeric>
 #include <random>