diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27f7ee1a..18318ccc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.0.0-BETA6
+
+* Fix Custom Write Checkpoint application logic
 
 ## 1.0.0-BETA5
 
diff --git a/core/src/commonMain/kotlin/com/powersync/db/PowerSyncDatabaseImpl.kt b/core/src/commonMain/kotlin/com/powersync/db/PowerSyncDatabaseImpl.kt
index 1221911e..4a53ec7d 100644
--- a/core/src/commonMain/kotlin/com/powersync/db/PowerSyncDatabaseImpl.kt
+++ b/core/src/commonMain/kotlin/com/powersync/db/PowerSyncDatabaseImpl.kt
@@ -252,7 +252,7 @@ internal class PowerSyncDatabaseImpl(
         writeTransaction { tx ->
             internalDb.queries.deleteEntriesWithIdLessThan(lastTransactionId.toLong())
 
-            if (writeCheckpoint != null && bucketStorage.hasCrud()) {
+            if (writeCheckpoint != null && !bucketStorage.hasCrud()) {
                 tx.execute(
                     "UPDATE ps_buckets SET target_op = CAST(? AS INTEGER) WHERE name='\$local'",
                     listOf(writeCheckpoint),
diff --git a/gradle.properties b/gradle.properties
index 076adac7..e7d9ef39 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -17,7 +17,7 @@ development=true
 RELEASE_SIGNING_ENABLED=true
 # Library config
 GROUP=com.powersync
-LIBRARY_VERSION=1.0.0-BETA5
+LIBRARY_VERSION=1.0.0-BETA6
 GITHUB_REPO=https://github.com/powersync-ja/powersync-kotlin.git
 # POM
 POM_URL=https://github.com/powersync-ja/powersync-kotlin/