diff --git a/awscrt/s3.py b/awscrt/s3.py
index 41cb73eff..2a732f5ff 100644
--- a/awscrt/s3.py
+++ b/awscrt/s3.py
@@ -106,6 +106,18 @@ class S3ChecksumAlgorithm(IntEnum):
     CRC64NVME = 5
     """CRC64NVME"""
 
+    SHA512 = 6,
+    """SHA512"""
+
+    XXHASH64 = 7,
+    """XXHASH64"""
+
+    XXHASH3 = 8,
+    """XXHASH3"""
+
+    XXHASH128 = 9,
+    """XXHASH128"""
+
 
 class S3ChecksumLocation(IntEnum):
     """Where to put the checksum."""
diff --git a/codebuild/linux-integration-tests.yml b/codebuild/linux-integration-tests.yml
index 251acaa50..b5c9aa1ce 100644
--- a/codebuild/linux-integration-tests.yml
+++ b/codebuild/linux-integration-tests.yml
@@ -11,7 +11,6 @@ env:
 phases:
   install:
     commands:
-      - add-apt-repository ppa:ubuntu-toolchain-r/test
       - apt-get update -y
       - apt-get install gcc-7 cmake ninja-build python3 python3-pip python3-venv -y
   pre_build:
diff --git a/codebuild/mqtt5-python-canary-test.yml b/codebuild/mqtt5-python-canary-test.yml
index 05faf1ac7..b74833931 100644
--- a/codebuild/mqtt5-python-canary-test.yml
+++ b/codebuild/mqtt5-python-canary-test.yml
@@ -16,7 +16,6 @@ env:
 phases:
   install:
     commands:
-      - add-apt-repository ppa:ubuntu-toolchain-r/test
       - apt-get update -y
       - apt-get install gcc-7 cmake ninja-build python3 -y
       - python3 -m pip install psutil