diff --git a/.github/workflows/build-and-publish.yml b/.github/workflows/build-and-publish.yml
index 4e6f9b6..d28d5d0 100644
--- a/.github/workflows/build-and-publish.yml
+++ b/.github/workflows/build-and-publish.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Install dependencies
       run: lein deps
     - name: Start mongo
-      run:  sudo docker run --rm -d -p 27017:27017 mongo --replSet rs1
+      run:  sudo docker run --rm -d -p 27017:27017 mongo
     - name: Run tests
       run: lein test
     - name: Publish
diff --git a/test/mongo_driver_3/client_test.clj b/test/mongo_driver_3/client_test.clj
index 86a0929..53b4736 100644
--- a/test/mongo_driver_3/client_test.clj
+++ b/test/mongo_driver_3/client_test.clj
@@ -28,8 +28,7 @@
 
 ;;; Integration
 
-; docker run -it --rm -p 27017:27017 mongo:4.2 --replset rs1
-
+; docker run -it --rm -p 27017:27017 mongo:4.2
 (def mongo-host "mongodb://localhost:27017")
 
 (deftest ^:integration test-create
@@ -46,11 +45,7 @@
 (def client (atom nil))
 
 (defn- setup-connections [f]
-  (reset! client (mg/create mongo-host))
-  ;; Ensure we have a replica set so we can run session tests
-  (let [admin-db (mg/get-db @client "admin")]
-    (try (.runCommand admin-db (mc/document {:replSetInitiate {}}))
-         (catch Exception _ "already initialized")))
+  (reset! client (mg/create))
   (f)
   (mg/close @client))
 
@@ -73,5 +68,5 @@
     (is (= ["test"] (map #(get % "name") (mg/collections db {:keywordize? false}))))
     (is (instance? ListCollectionsIterable (mg/collections db {:raw? true})))))
 
-(deftest ^:integration test-start-session
+#_(deftest ^:integration test-start-session
   (is (instance? ClientSession (mg/start-session @client))))
\ No newline at end of file
diff --git a/test/mongo_driver_3/collection_test.clj b/test/mongo_driver_3/collection_test.clj
index 2e3fd32..80dd2e9 100644
--- a/test/mongo_driver_3/collection_test.clj
+++ b/test/mongo_driver_3/collection_test.clj
@@ -184,7 +184,7 @@
 
 ;;; Integration
 
-; docker run -it --rm -p 27017:27017 mongo:4.2 --replset rs1
+; docker run -it --rm -p 27017:27017 mongo:4.2
 
 (def client (atom nil))