diff --git a/bosk-mongo/build.gradle b/bosk-mongo/build.gradle
index f3d3fe5c..8b97616d 100644
--- a/bosk-mongo/build.gradle
+++ b/bosk-mongo/build.gradle
@@ -26,7 +26,9 @@ compileTestJava {
 
 dependencies {
 	api project(":bosk-core")
-	api 'org.mongodb:mongodb-driver-sync:4.1.2'
+	api 'org.mongodb:mongodb-driver-sync:5.1.2'
+	implementation 'com.github.spotbugs:spotbugs-annotations:4.8.6' // To stop warnings about When from MongoDB driver
+
 
 	// Allows us to annotate status objects so they're handy to serialize with jackson
 	implementation group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.17.2'
diff --git a/bosk-mongo/src/main/java/works/bosk/drivers/mongo/TransactionalCollection.java b/bosk-mongo/src/main/java/works/bosk/drivers/mongo/TransactionalCollection.java
index b2052674..9eb8bcad 100644
--- a/bosk-mongo/src/main/java/works/bosk/drivers/mongo/TransactionalCollection.java
+++ b/bosk-mongo/src/main/java/works/bosk/drivers/mongo/TransactionalCollection.java
@@ -14,6 +14,7 @@
 import com.mongodb.client.DistinctIterable;
 import com.mongodb.client.FindIterable;
 import com.mongodb.client.ListIndexesIterable;
+import com.mongodb.client.ListSearchIndexesIterable;
 import com.mongodb.client.MapReduceIterable;
 import com.mongodb.client.MongoClient;
 import com.mongodb.client.MongoCollection;
@@ -21,6 +22,7 @@
 import com.mongodb.client.model.CountOptions;
 import com.mongodb.client.model.CreateIndexOptions;
 import com.mongodb.client.model.DeleteOptions;
+import com.mongodb.client.model.DropCollectionOptions;
 import com.mongodb.client.model.DropIndexOptions;
 import com.mongodb.client.model.EstimatedDocumentCountOptions;
 import com.mongodb.client.model.FindOneAndDeleteOptions;
@@ -32,6 +34,7 @@
 import com.mongodb.client.model.InsertOneOptions;
 import com.mongodb.client.model.RenameCollectionOptions;
 import com.mongodb.client.model.ReplaceOptions;
+import com.mongodb.client.model.SearchIndexModel;
 import com.mongodb.client.model.UpdateOptions;
 import com.mongodb.client.model.WriteModel;
 import com.mongodb.client.result.DeleteResult;
@@ -377,18 +380,22 @@ public <TResult> ChangeStreamIterable<TResult> watch(ClientSession clientSession
 		return this.downstream.watch(clientSession, pipeline, resultClass);
 	}
 
+	@SuppressWarnings("deprecation")
 	public MapReduceIterable<TDocument> mapReduce(String mapFunction, String reduceFunction) {
 		return this.downstream.mapReduce(currentSession(), mapFunction, reduceFunction);
 	}
 
+	@SuppressWarnings("deprecation")
 	public <TResult> MapReduceIterable<TResult> mapReduce(String mapFunction, String reduceFunction, Class<TResult> resultClass) {
 		return this.downstream.mapReduce(currentSession(), mapFunction, reduceFunction, resultClass);
 	}
 
+	@SuppressWarnings("deprecation")
 	public MapReduceIterable<TDocument> mapReduce(ClientSession clientSession, String mapFunction, String reduceFunction) {
 		return this.downstream.mapReduce(clientSession, mapFunction, reduceFunction);
 	}
 
+	@SuppressWarnings("deprecation")
 	public <TResult> MapReduceIterable<TResult> mapReduce(ClientSession clientSession, String mapFunction, String reduceFunction, Class<TResult> resultClass) {
 		return this.downstream.mapReduce(clientSession, mapFunction, reduceFunction, resultClass);
 	}
@@ -625,6 +632,51 @@ public void drop(ClientSession clientSession) {
 		this.downstream.drop(clientSession);
 	}
 
+	@Override
+	public void drop(DropCollectionOptions dropCollectionOptions) {
+		this.downstream.drop(dropCollectionOptions);
+	}
+
+	@Override
+	public void drop(ClientSession clientSession, DropCollectionOptions dropCollectionOptions) {
+		this.downstream.drop(clientSession, dropCollectionOptions);
+	}
+
+	@Override
+	public String createSearchIndex(String indexName, Bson definition) {
+		return downstream.createSearchIndex(indexName, definition);
+	}
+
+	@Override
+	public String createSearchIndex(Bson definition) {
+		return downstream.createSearchIndex(definition);
+	}
+
+	@Override
+	public List<String> createSearchIndexes(List<SearchIndexModel> searchIndexModels) {
+		return downstream.createSearchIndexes(searchIndexModels);
+	}
+
+	@Override
+	public void updateSearchIndex(String indexName, Bson definition) {
+		downstream.updateSearchIndex(indexName, definition);
+	}
+
+	@Override
+	public void dropSearchIndex(String indexName) {
+		downstream.dropSearchIndex(indexName);
+	}
+
+	@Override
+	public ListSearchIndexesIterable<Document> listSearchIndexes() {
+		return downstream.listSearchIndexes();
+	}
+
+	@Override
+	public <TResult> ListSearchIndexesIterable<TResult> listSearchIndexes(Class<TResult> tResultClass) {
+		return downstream.listSearchIndexes(tResultClass);
+	}
+
 	public String createIndex(Bson keys) {
 		return this.downstream.createIndex(currentSession(), keys);
 	}
diff --git a/bosk-mongo/src/test/java/works/bosk/drivers/mongo/DemultiplexerTest.java b/bosk-mongo/src/test/java/works/bosk/drivers/mongo/DemultiplexerTest.java
index 5e700ce0..ce113df9 100644
--- a/bosk-mongo/src/test/java/works/bosk/drivers/mongo/DemultiplexerTest.java
+++ b/bosk-mongo/src/test/java/works/bosk/drivers/mongo/DemultiplexerTest.java
@@ -103,12 +103,12 @@ static ChangeStreamDocument<BsonDocument> event(BsonDocument lsid, long txnNumbe
 			.append("coll", new BsonString("collection"))
 			.append("db", new BsonString("database"));
 		return new ChangeStreamDocument<>(
-			OperationType.OTHER,
+			OperationType.OTHER.getValue(),
 			new BsonDocument("_id", new BsonString("resumeToken")),
 			ns, ns,
-			null, null, null, null,
+			null, null, null, null, null,
 			new BsonInt64(txnNumber),
-			lsid
-		);
+			lsid,
+			null, null, null);
 	}
 }
diff --git a/bosk-mongo/src/test/java/works/bosk/drivers/mongo/MongoService.java b/bosk-mongo/src/test/java/works/bosk/drivers/mongo/MongoService.java
index 7e000654..ca277661 100644
--- a/bosk-mongo/src/test/java/works/bosk/drivers/mongo/MongoService.java
+++ b/bosk-mongo/src/test/java/works/bosk/drivers/mongo/MongoService.java
@@ -65,9 +65,10 @@ public void close() {
 	}
 
 	private static GenericContainer<?> mongoContainer() {
+		// For some reason, creating a MongoDBContainer makes the Hanoi test WAY slower, like 100x
 		GenericContainer<?> result = new GenericContainer<>(
 			new ImageFromDockerfile().withDockerfileFromBuilder(builder -> builder
-				.from("mongo:4.4")
+				.from("mongo:7.0")
 				.run("echo \"rs.initiate()\" > /docker-entrypoint-initdb.d/rs-initiate.js")
 				.cmd("mongod", "--replSet", "rsLonesome", "--port", "27017", "--bind_ip_all")
 				.build()))