diff --git a/Datastore/owlbot.py b/Datastore/owlbot.py
index af12dfa22c96..f4967041f8c0 100644
--- a/Datastore/owlbot.py
+++ b/Datastore/owlbot.py
@@ -30,9 +30,13 @@
 # Added so that we can pass copy_excludes in the owlbot_main() call
 _tracked_paths.add(src)
 
-php.owlbot_main(src=src, dest=dest)
-
-
+php.owlbot_main(
+    src=src,
+    dest=dest,
+    copy_excludes=[
+        src / "src/V1/TransactionOptions/ReadOnly.php"
+    ]
+)
 
 # document and utilize apiEndpoint instead of serviceAddress
 s.replace(
@@ -68,6 +72,15 @@
             search,
             replace)
 
+# remove ReadOnly class_alias code
+s.replace(
+    "src/V*/**/PBReadOnly.php",
+    r"^// Adding a class alias for backwards compatibility with the \"readonly\" keyword.$"
+    + "\n"
+    + r"^class_alias\(PBReadOnly::class, __NAMESPACE__ . '\\ReadOnly'\);$"
+    + "\n",
+    '')
+
 ### [START] protoc backwards compatibility fixes
 
 # roll back to private properties.
diff --git a/Firestore/owlbot.py b/Firestore/owlbot.py
index fb32446a356d..da1566156061 100644
--- a/Firestore/owlbot.py
+++ b/Firestore/owlbot.py
@@ -39,6 +39,7 @@
     copy_excludes=[
         src / '*/src/V1/FirestoreClient.php',
         src / '*/src/Admin/V1/FirestoreAdminClient.php',
+        src / "*/src/V1/TransactionOptions/ReadOnly.php",
     ]
 )
 
@@ -115,6 +116,15 @@
     r'@group admin',
     '@group firestore-admin')
 
+# remove ReadOnly class_alias code
+s.replace(
+    "src/V*/**/PBReadOnly.php",
+    r"^// Adding a class alias for backwards compatibility with the \"readonly\" keyword.$"
+    + "\n"
+    + r"^class_alias\(PBReadOnly::class, __NAMESPACE__ . '\\ReadOnly'\);$"
+    + "\n",
+    '')
+
 ### [START] protoc backwards compatibility fixes
 
 # roll back to private properties.
diff --git a/Spanner/owlbot.py b/Spanner/owlbot.py
index 20aceb70172d..f50286b7a758 100644
--- a/Spanner/owlbot.py
+++ b/Spanner/owlbot.py
@@ -35,12 +35,11 @@
     src=src,
     dest=dest,
     copy_excludes=[
-        src / "*/src/V1/SpannerClient.php"
+        src / "*/src/V1/SpannerClient.php",
+        src / "*/src/V1/TransactionOptions/ReadOnly.php",
     ]
 )
 
-
-
 # Spanner Database Admin also lives here
 admin_library = Path(f"../{php.STAGING_DIR}/Spanner/v1/Admin/Database/v1").resolve()
 
@@ -108,6 +107,15 @@
     '@group instance',
     '@group spanner-admin-instance')
 
+# remove ReadOnly class_alias code
+s.replace(
+    "src/V*/**/PBReadOnly.php",
+    r"^// Adding a class alias for backwards compatibility with the \"readonly\" keyword.$"
+    + "\n"
+    + r"^class_alias\(PBReadOnly::class, __NAMESPACE__ . '\\ReadOnly'\);$"
+    + "\n",
+    '')
+
 ## START fixing commit() breaking change
 
 # move $mutations back into commit() signature