diff --git a/.ci_support/migrations/libprotobuf4233_libgrpc156.yaml b/.ci_support/migrations/libprotobuf4233_libgrpc156.yaml
deleted file mode 100644
index 5fd0340..0000000
--- a/.ci_support/migrations/libprotobuf4233_libgrpc156.yaml
+++ /dev/null
@@ -1,11 +0,0 @@
-__migrator:
-  build_number: 1
-  kind: version
-  migration_number: 1
-libgrpc:
-- '1.54'
-- '1.56'
-libprotobuf:
-- '3.21'
-- '4.23.3'
-migrator_ts: 1688154716.9176981
diff --git a/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
index eb239f2..a8f5520 100644
--- a/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
@@ -1,5 +1,5 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
 MACOSX_SDK_VERSION:
 - '10.13'
 c_compiler:
diff --git a/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
index deedfd7..b56de67 100644
--- a/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
@@ -1,5 +1,5 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
 MACOSX_SDK_VERSION:
 - '10.13'
 c_compiler:
diff --git a/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
index 10925c7..65afade 100644
--- a/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
@@ -1,5 +1,5 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
 MACOSX_SDK_VERSION:
 - '10.13'
 c_compiler:
diff --git a/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
index 09d77d7..52de304 100644
--- a/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
@@ -1,5 +1,5 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
 MACOSX_SDK_VERSION:
 - '10.13'
 c_compiler: