diff --git a/nextflow/configs/profiles/sumner2.config b/nextflow/configs/profiles/sumner2.config
index cceacfc..83bd708 100644
--- a/nextflow/configs/profiles/sumner2.config
+++ b/nextflow/configs/profiles/sumner2.config
@@ -121,6 +121,7 @@ params {
     globus_remote_endpoint = "70850914-722d-11e7-aa01-22000bf2d287" // JAX T2 storage endpoint
     globus_remote_folder = "/tier2/vkumar/"
     dropbox_prefix = "labdropbox:\"/KumarLab's shared workspace/VideoData/MDS_Tests/\""
+    rclone_config = "/projects/kumar-lab/meta/secrets/tokens/rclone_dropbox.conf"
 }
 
 apptainer {
diff --git a/nextflow/modules/remote_io.nf b/nextflow/modules/remote_io.nf
index a0a4bae..836fec9 100644
--- a/nextflow/modules/remote_io.nf
+++ b/nextflow/modules/remote_io.nf
@@ -51,6 +51,7 @@ process FILTER_UNPROCESSED_DROPBOX {
     input:
     path test_files
     val dropbox_prefix
+    path rclone_config
 
     output:
     path "unprocessed_files.txt", emit: unprocessed_files
@@ -62,7 +63,7 @@ process FILTER_UNPROCESSED_DROPBOX {
     touch unprocessed_files.txt
     while read test_file; do
         test_pose=\${test_file/.*}_pose_est_v6.h5
-        rclone ls ${dropbox_prefix}\${test_pose} > /dev/null 2>&1
+        rclone ls --config=${rclone_config} ${dropbox_prefix}\${test_pose} > /dev/null 2>&1
         if [[ \$? != 0 ]]; then
             echo \$test_file >> unprocessed_files.txt
         fi
@@ -122,6 +123,7 @@ process GET_DATA_FROM_DROPBOX {
     input:
     path files_to_transfer
     val dropbox_prefix
+    path rclone_config
 
     output:
     path "fetched_files.txt", emit: remote_files
@@ -129,7 +131,7 @@ process GET_DATA_FROM_DROPBOX {
     script:
     """
     echo ${dropbox_prefix}
-    rclone copy --transfers=1 --include-from ${files_to_transfer} ${dropbox_prefix} retrieved_files/.
+    rclone copy --config=${rclone_config} --transfers=1 --include-from ${files_to_transfer} ${dropbox_prefix} retrieved_files/.
     find \$(pwd)/retrieved_files/ -type f > fetched_files.txt
     """
 }
@@ -142,9 +144,10 @@ process PUT_DATA_TO_DROPBOX {
     path file_to_upload
     tuple path(result_file), val(publish_filename)
     val dropbox_prefix
+    path rclone_config
 
     script:
     """
-    rclone copy --transfers=1 ${result_file} ${dropbox_prefix}/${publish_filename}
+    rclone copy --config=${rclone_config} --transfers=1 ${result_file} ${dropbox_prefix}/${publish_filename}
     """
 }
diff --git a/nextflow/workflows/io.nf b/nextflow/workflows/io.nf
index 693fb2b..e203e5e 100644
--- a/nextflow/workflows/io.nf
+++ b/nextflow/workflows/io.nf
@@ -24,8 +24,8 @@ workflow PREPARE_DATA {
     if (location == "local") {
         file_batch = FILTER_LOCAL_BATCH(all_valid_files, params.ignore_invalid_inputs, params.filter_processed, params.pubdir).process_filelist
     } else if (location == "dropbox") {
-        in_video_list = FILTER_UNPROCESSED_DROPBOX(all_valid_files, params.dropbox_prefix).unprocessed_files
-        file_batch = GET_DATA_FROM_DROPBOX(in_video_list, params.dropbox_prefix).remote_files
+        in_video_list = FILTER_UNPROCESSED_DROPBOX(all_valid_files, params.dropbox_prefix, params.rclone_config).unprocessed_files
+        file_batch = GET_DATA_FROM_DROPBOX(in_video_list, params.dropbox_prefix, params.rclone_config).remote_files
     } else if (location == "globus") {
         CHECK_GLOBUS_AUTH()
         in_video_list = FILTER_UNPROCESSED_GLOBUS(params.globus_remote_endpoint, all_valid_files).unprocessed_files