diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b550a1c66..28dac9707 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
       - 'main'
 
 env:
-  BUILDER_VERSION: v0.9.46
+  BUILDER_VERSION: v0.9.48
   BUILDER_SOURCE: releases
   BUILDER_HOST: https://d19elf31gohf1l.cloudfront.net
   PACKAGE_NAME: aws-c-io
@@ -18,7 +18,7 @@ env:
 
 jobs:
   linux-compat:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     strategy:
       fail-fast: false
       matrix:
@@ -38,7 +38,7 @@ jobs:
         ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-${{ matrix.image }} build -p ${{ env.PACKAGE_NAME }}
 
   linux-byo-crypto:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     steps:
        # We can't use the `uses: docker://image` version yet, GitHub lacks authentication for actions -> packages
     - name: Build ${{ env.PACKAGE_NAME }} + consumers
@@ -47,7 +47,7 @@ jobs:
         ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-al2-x64 build -p ${{ env.PACKAGE_NAME }} --cmake-extra=-DBYO_CRYPTO=ON
 
   linux-compiler-compat:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     strategy:
       matrix:
         compiler:
@@ -70,7 +70,7 @@ jobs:
         ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-${{ env.LINUX_BASE_IMAGE }} build -p ${{ env.PACKAGE_NAME }} --compiler=${{ matrix.compiler }}
 
   clang-sanitizers:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     strategy:
       matrix:
         sanitizers: [",thread", ",address,undefined"]
@@ -82,7 +82,7 @@ jobs:
           ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-${{ env.LINUX_BASE_IMAGE }} build -p ${{ env.PACKAGE_NAME }} --compiler=clang-11 --cmake-extra=-DENABLE_SANITIZERS=ON --cmake-extra=-DSANITIZERS="${{ matrix.sanitizers }}"
 
   linux-shared-libs:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     steps:
         # We can't use the `uses: docker://image` version yet, GitHub lacks authentication for actions -> packages
     - name: Build ${{ env.PACKAGE_NAME }}
@@ -93,7 +93,7 @@ jobs:
   # Test downstream repos.
   # This should not be required because we can run into a chicken and egg problem if there is a change that needs some fix in a downstream repo.
   downstream:
-    runs-on: ubuntu-20.04 # latest
+    runs-on: ubuntu-22.04 # latest
     steps:
       # We can't use the `uses: docker://image` version yet, GitHub lacks authentication for actions -> packages
       - name: Build ${{ env.PACKAGE_NAME }}
@@ -140,7 +140,7 @@ jobs:
         python .\aws-c-io\build\deps\aws-c-common\scripts\appverifier_ctest.py --build_directory .\aws-c-io\build\aws-c-io
 
   osx:
-    runs-on: macos-12 # latest
+    runs-on: macos-13 # latest
     steps:
     - name: Build ${{ env.PACKAGE_NAME }} + consumers
       run: |
diff --git a/source/tracing.c b/source/tracing.c
index fd6d233fa..680e96613 100644
--- a/source/tracing.c
+++ b/source/tracing.c
@@ -11,7 +11,7 @@ __itt_string_handle *tracing_event_loop_run_tasks;
 __itt_string_handle *tracing_event_loop_event;
 __itt_string_handle *tracing_event_loop_events;
 
-void aws_io_tracing_init() {
+void aws_io_tracing_init(void) {
     io_tracing_domain = __itt_domain_create("aws.c.io");
     tracing_input_stream_read = __itt_string_handle_create("Read:InputStream");
     tracing_event_loop_run_tasks = __itt_string_handle_create("RunTasks:EventLoop");