diff --git a/backend/src/api/rbf-cache.ts b/backend/src/api/rbf-cache.ts
index d2b7ddf6c..708393083 100644
--- a/backend/src/api/rbf-cache.ts
+++ b/backend/src/api/rbf-cache.ts
@@ -480,7 +480,7 @@ class RbfCache {
     };
 
     if (config.MEMPOOL.BACKEND === 'esplora') {
-      const sliceLength = Math.floor(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 40);
+      const sliceLength = Math.ceil(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 40);
       for (let i = 0; i < Math.ceil(txids.length / sliceLength); i++) {
         const slice = txids.slice(i * sliceLength, (i + 1) * sliceLength);
         try {
diff --git a/backend/src/tasks/lightning/forensics.service.ts b/backend/src/tasks/lightning/forensics.service.ts
index a21c4c280..aa88f5bb4 100644
--- a/backend/src/tasks/lightning/forensics.service.ts
+++ b/backend/src/tasks/lightning/forensics.service.ts
@@ -79,7 +79,7 @@ class ForensicsService {
       }
 
       let progress = 0;
-      const sliceLength = Math.floor(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 10);
+      const sliceLength = Math.ceil(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 10);
       // process batches of 1000 channels
       for (let i = 0; i < Math.ceil(allChannels.length / sliceLength); i++) {
         const channels = allChannels.slice(i * sliceLength, (i + 1) * sliceLength);
diff --git a/backend/src/tasks/lightning/network-sync.service.ts b/backend/src/tasks/lightning/network-sync.service.ts
index 09c8b912e..7d6a40571 100644
--- a/backend/src/tasks/lightning/network-sync.service.ts
+++ b/backend/src/tasks/lightning/network-sync.service.ts
@@ -290,7 +290,7 @@ class NetworkSyncService {
 
       const allChannels = await channelsApi.$getChannelsByStatus([0, 1]);
 
-      const sliceLength = Math.floor(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 2);
+      const sliceLength = Math.ceil(config.ESPLORA.BATCH_QUERY_BASE_SIZE / 2);
       // process batches of 5000 channels
       for (let i = 0; i < Math.ceil(allChannels.length / sliceLength); i++) {
         const channels = allChannels.slice(i * sliceLength, (i + 1) * sliceLength);