diff --git a/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-cellplex-tests.yml b/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-cellplex-tests.yml
index c499aa9b0..eb13dcea9 100644
--- a/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-cellplex-tests.yml
+++ b/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-cellplex-tests.yml
@@ -54,13 +54,15 @@
     Number of expected cells: 500
   outputs:
     MultiQC_STARsolo:
+      class: File
       asserts:
         - that: "has_text_matching"
           expression: ">subsample</th><td class=\"data-coloured mqc-generalstats-star-uniquely_mapped_percent \"><div class=\"wrapper\"><span class=\"bar\""
         - that: "has_text_matching"
           expression: "></span><span class=\"val\">3[0-9].[0-9]%</span></div></td><td class=\"data-coloured mqc-generalstats-star-uniquely_mapped \"><div class=\"wrapper\"><span class=\"bar\""
     Seurat input for gene expression (filtered):
-      attributes: { collection_type: list:list }
+      class: Collection
+      collection_type: list:list
       element_tests:
         subsample:
           elements:
@@ -77,7 +79,8 @@
                 has_line:
                   line: "FBgn0250732	gfzf"
     CITE-seq-Count report:
-      attributes: { collection_type: list }
+      class: Collection
+      collection_type: list
       element_tests:
         subsample:
           asserts:
@@ -90,7 +93,8 @@
             - that: "has_line"
               line: "Percentage unmapped: 1"
     Seurat input for CMO (UMI):
-      attributes: { collection_type: list:list }
+      class: Collection
+      collection_type: list:list
       element_tests:
         subsample:
           elements:
diff --git a/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-v3-tests.yml b/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-v3-tests.yml
index 98fd308e3..82a7c4eee 100644
--- a/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-v3-tests.yml
+++ b/workflows/scRNAseq/fastq-to-matrix-10x/scrna-seq-fastq-to-matrix-10x-v3-tests.yml
@@ -29,13 +29,15 @@
       filetype: tabular
   outputs:
     'MultiQC on input dataset(s): Webpage':
+      class: File
       asserts:
         - that: "has_text_matching"
           expression: ">subsample</th><td class=\"data-coloured mqc-generalstats-star-uniquely_mapped_percent \"><div class=\"wrapper\"><span class=\"bar\""
         - that: "has_text_matching"
           expression: "></span><span class=\"val\">3[0-9].[0-9]%</span></div></td><td class=\"data-coloured mqc-generalstats-star-uniquely_mapped \"><div class=\"wrapper\"><span class=\"bar\""
     Seurat input for gene expression (filtered):
-      attributes: { collection_type: list:list }
+      class: Collection
+      collection_type: list:list
       element_tests:
         subsample:
           elements: