diff --git a/test/spec/crud/unified/aggregate-write-readPreference.json b/test/spec/crud/unified/aggregate-write-readPreference.json
index 44680fb1ff9..bc887e83cbc 100644
--- a/test/spec/crud/unified/aggregate-write-readPreference.json
+++ b/test/spec/crud/unified/aggregate-write-readPreference.json
@@ -1,6 +1,6 @@
 {
   "description": "aggregate-write-readPreference",
-  "schemaVersion": "1.3",
+  "schemaVersion": "1.4",
   "runOnRequirements": [
     {
       "minServerVersion": "3.6",
@@ -90,7 +90,8 @@
       "description": "Aggregate with $out includes read preference for 5.0+ server",
       "runOnRequirements": [
         {
-          "minServerVersion": "5.0"
+          "minServerVersion": "5.0",
+          "serverless": "forbid"
         }
       ],
       "operations": [
@@ -181,7 +182,8 @@
       "runOnRequirements": [
         {
           "minServerVersion": "4.2",
-          "maxServerVersion": "4.4.99"
+          "maxServerVersion": "4.4.99",
+          "serverless": "forbid"
         }
       ],
       "operations": [
diff --git a/test/spec/crud/unified/aggregate-write-readPreference.yml b/test/spec/crud/unified/aggregate-write-readPreference.yml
index 424713161a1..86f5a4399c7 100644
--- a/test/spec/crud/unified/aggregate-write-readPreference.yml
+++ b/test/spec/crud/unified/aggregate-write-readPreference.yml
@@ -1,6 +1,6 @@
 description: aggregate-write-readPreference
 
-schemaVersion: '1.3'
+schemaVersion: '1.4'
 
 runOnRequirements:
   # 3.6+ non-standalone is needed to utilize $readPreference in OP_MSG
@@ -59,6 +59,7 @@ tests:
   - description: "Aggregate with $out includes read preference for 5.0+ server"
     runOnRequirements:
       - minServerVersion: "5.0"
+        serverless: "forbid"
     operations:
       - object: *collection0
         name: aggregate
@@ -91,6 +92,7 @@ tests:
       # drivers may avoid inheriting a client-level read concern for pre-4.2.
       - minServerVersion: "4.2"
         maxServerVersion: "4.4.99"
+        serverless: "forbid"
     operations:
       - object: *collection0
         name: aggregate
diff --git a/test/spec/crud/unified/db-aggregate-write-readPreference.json b/test/spec/crud/unified/db-aggregate-write-readPreference.json
index 2a20542390b..2a81282de81 100644
--- a/test/spec/crud/unified/db-aggregate-write-readPreference.json
+++ b/test/spec/crud/unified/db-aggregate-write-readPreference.json
@@ -64,7 +64,8 @@
       "description": "Database-level aggregate with $out includes read preference for 5.0+ server",
       "runOnRequirements": [
         {
-          "minServerVersion": "5.0"
+          "minServerVersion": "5.0",
+          "serverless": "forbid"
         }
       ],
       "operations": [
@@ -158,7 +159,8 @@
       "runOnRequirements": [
         {
           "minServerVersion": "4.2",
-          "maxServerVersion": "4.4.99"
+          "maxServerVersion": "4.4.99",
+          "serverless": "forbid"
         }
       ],
       "operations": [
diff --git a/test/spec/crud/unified/db-aggregate-write-readPreference.yml b/test/spec/crud/unified/db-aggregate-write-readPreference.yml
index a79eb0650a7..04a3b2169f5 100644
--- a/test/spec/crud/unified/db-aggregate-write-readPreference.yml
+++ b/test/spec/crud/unified/db-aggregate-write-readPreference.yml
@@ -52,6 +52,7 @@ tests:
   - description: "Database-level aggregate with $out includes read preference for 5.0+ server"
     runOnRequirements:
       - minServerVersion: "5.0"
+        serverless: "forbid"
     operations:
       - object: *database0
         name: aggregate
@@ -85,6 +86,7 @@ tests:
       # drivers may avoid inheriting a client-level read concern for pre-4.2.
       - minServerVersion: "4.2"
         maxServerVersion: "4.4.99"
+        serverless: "forbid"
     operations:
       - object: *database0
         name: aggregate