diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 74044192dc..ced32ca4d0 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-middlewareVersion = "v0.39.5"
+middlewareVersion = "v0.39.6"
 kotlinVersion = '2.0.21'
 kspVersion = "2.0.21-1.0.25"
 
diff --git a/protocol/src/main/proto/localstore.proto b/protocol/src/main/proto/localstore.proto
index 3eeecb18b4..7979ebe164 100644
--- a/protocol/src/main/proto/localstore.proto
+++ b/protocol/src/main/proto/localstore.proto
@@ -64,4 +64,5 @@ message ObjectStoreChecksums {
     int32 linksErase = 14;
     int32 marketplaceForceReindexCounter = 15;
     int32 reindexDeletedObjects = 16;
+    int32 reindexParticipants = 17;
 }