diff --git a/mailbox-core/build.gradle b/mailbox-core/build.gradle
index 1cb3903a10d8d445b939ea3141109b1b2fb12702..a5e3e30187bf05ce818df90d3702bc8e662864e5 100644
--- a/mailbox-core/build.gradle
+++ b/mailbox-core/build.gradle
@@ -27,7 +27,7 @@ dependencies {
     implementation "io.ktor:ktor-jackson:$ktor_version"
     api "org.slf4j:slf4j-api:1.7.32"
 
-    implementation 'com.h2database:h2:1.4.192' // The last version that supports Java 1.6
+    implementation 'com.h2database:h2:1.4.200'
 
     // Base 32
     implementation 'dev.keiji.rfc4648:rfc4648:1.0.0'
diff --git a/mailbox-core/src/main/java/org/briarproject/mailbox/core/db/H2Database.kt b/mailbox-core/src/main/java/org/briarproject/mailbox/core/db/H2Database.kt
index 6ba18129c44bed4ca64685ea136d7649f5b589a9..f04bf4168906687fb48abdb23dd62c6b3849ee71 100644
--- a/mailbox-core/src/main/java/org/briarproject/mailbox/core/db/H2Database.kt
+++ b/mailbox-core/src/main/java/org/briarproject/mailbox/core/db/H2Database.kt
@@ -33,7 +33,7 @@ open class H2Database(
     }
 
     private val dbPath: String get() = File(config.getDatabaseDirectory(), "db").absolutePath
-    private val url: String = ("jdbc:h2:split:$dbPath;MULTI_THREADED=1;WRITE_DELAY=0")
+    private val url: String = ("jdbc:h2:split:$dbPath;WRITE_DELAY=0")
 
     override fun open(listener: MigrationListener?): Boolean {
         val dir = config.getDatabaseDirectory()