diff --git a/source/transactions/tests/legacy/update.yml b/source/transactions/tests/legacy/update.yml
deleted file mode 100644
index b6167ac611..0000000000
--- a/source/transactions/tests/legacy/update.yml
+++ /dev/null
@@ -1,246 +0,0 @@
-runOn:
-    -
-        minServerVersion: "4.0"
-        topology: ["replicaset"]
-    -
-        minServerVersion: "4.1.8"
-        topology: ["sharded", "load-balanced"]
-
-database_name: &database_name "transaction-tests"
-collection_name: &collection_name "test"
-
-data:
-  - _id: 1
-  - _id: 2
-  - _id: 3
-
-tests:
-  - description: update
-
-    operations:
-      - name: startTransaction
-        object: session0
-      - name: updateOne
-        object: collection
-        arguments:
-          session: session0
-          filter: {_id: 4}
-          update:
-            $inc: {x: 1}
-          upsert: true
-        result:
-          matchedCount: 0
-          modifiedCount: 0
-          upsertedCount: 1
-          upsertedId: 4
-      - name: replaceOne
-        object: collection
-        arguments:
-          session: session0
-          filter: {x: 1}
-          replacement: {y: 1}
-        result:
-          matchedCount: 1
-          modifiedCount: 1
-          upsertedCount: 0
-      - name: updateMany
-        object: collection
-        arguments:
-          session: session0
-          filter:
-            _id: {$gte: 3}
-          update:
-            $set: {z: 1}
-        result:
-          matchedCount: 2
-          modifiedCount: 2
-          upsertedCount: 0
-      - name: commitTransaction
-        object: session0
-
-    expectations:
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {_id: 4}
-                u: {$inc: {x: 1}}
-                upsert: true
-            ordered: true
-            readConcern:
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction: true
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {x: 1}
-                u: {y: 1}
-            ordered: true
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {_id: {$gte: 3}}
-                u: {$set: {z: 1}}
-                multi: true
-            ordered: true
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            commitTransaction: 1
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-          command_name: commitTransaction
-          database_name: admin
-
-    outcome:
-      collection:
-        data:
-          - {_id: 1}
-          - {_id: 2}
-          - {_id: 3, z: 1}
-          - {_id: 4, y: 1, z: 1}
-
-  - description: collections writeConcern ignored for update
-
-    operations:
-      - name: startTransaction
-        object: session0
-        arguments:
-          options:
-            writeConcern:
-              w: majority
-      - name: updateOne
-        object: collection
-        collectionOptions:
-          writeConcern:
-            w: majority
-        arguments:
-          session: session0
-          filter: {_id: 4}
-          update:
-            $inc: {x: 1}
-          upsert: true
-        result:
-          matchedCount: 0
-          modifiedCount: 0
-          upsertedCount: 1
-          upsertedId: 4
-      - name: replaceOne
-        object: collection
-        collectionOptions:
-          writeConcern:
-            w: majority
-        arguments:
-          session: session0
-          filter: {x: 1}
-          replacement: {y: 1}
-        result:
-          matchedCount: 1
-          modifiedCount: 1
-          upsertedCount: 0
-      - name: updateMany
-        object: collection
-        collectionOptions:
-          writeConcern:
-            w: majority
-        arguments:
-          session: session0
-          filter:
-            _id: {$gte: 3}
-          update:
-            $set: {z: 1}
-        result:
-          matchedCount: 2
-          modifiedCount: 2
-          upsertedCount: 0
-      - name: commitTransaction
-        object: session0
-
-    expectations:
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {_id: 4}
-                u: {$inc: {x: 1}}
-                upsert: true
-            ordered: true
-            readConcern:
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction: true
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {x: 1}
-                u: {y: 1}
-            ordered: true
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            update: *collection_name
-            updates:
-              - q: {_id: {$gte: 3}}
-                u: {$set: {z: 1}}
-                multi: true
-            ordered: true
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-          command_name: update
-          database_name: *database_name
-      - command_started_event:
-          command:
-            commitTransaction: 1
-            lsid: session0
-            txnNumber:
-              $numberLong: "1"
-            startTransaction:
-            autocommit: false
-            writeConcern:
-              w: majority
-          command_name: commitTransaction
-          database_name: admin
diff --git a/source/transactions/tests/unified/update.yml b/source/transactions/tests/unified/update.yml
index fb3c0a3c85..e3e470d47e 100644
--- a/source/transactions/tests/unified/update.yml
+++ b/source/transactions/tests/unified/update.yml
@@ -2,7 +2,7 @@
 # Please review the generated file, then remove this notice.
 
 description: update
-schemaVersion: '1.3'
+schemaVersion: '1.9'
 createEntities:
   -
     client:
@@ -24,10 +24,6 @@ createEntities:
     session:
       id: &session0 session0
       client: *client0
-  -
-    session:
-      id: &session1 session1
-      client: *client0
 runOnRequirements:
   -
     minServerVersion: '4.0'
@@ -218,6 +214,17 @@ tests:
   -
     description: 'collections writeConcern ignored for update'
     operations:
+      -
+        object: testRunner
+        name: createEntities
+        arguments:
+          entities:
+            - collection:
+                id: &collection1 collection1
+                database: *database0
+                collectionName: *collection_name
+                collectionOptions:
+                  writeConcern: { w: majority }
       -
         object: *session0
         name: startTransaction
@@ -225,10 +232,7 @@ tests:
           writeConcern:
             w: majority
       -
-        object: *collection0
-        collectionOptions:
-          writeConcern:
-            w: majority
+        object: *collection1
         name: updateOne
         arguments:
           session: *session0
@@ -244,10 +248,7 @@ tests:
           upsertedCount: 1
           upsertedId: 4
       -
-        object: *collection0
-        collectionOptions:
-          writeConcern:
-            w: majority
+        object: *collection1
         name: replaceOne
         arguments:
           session: *session0
@@ -260,10 +261,7 @@ tests:
           modifiedCount: 1
           upsertedCount: 0
       -
-        object: *collection0
-        collectionOptions:
-          writeConcern:
-            w: majority
+        object: *collection1
         name: updateMany
         arguments:
           session: *session0