diff --git a/my_collections/_history_timeline/T-cell-activation-NatGen-May-22.md b/my_collections/_history_timeline/T-cell-activation-NatGen-May-22.md
index 657bc3cb..7ce66f51 100644
--- a/my_collections/_history_timeline/T-cell-activation-NatGen-May-22.md
+++ b/my_collections/_history_timeline/T-cell-activation-NatGen-May-22.md
@@ -2,7 +2,7 @@
 title: "Single-cell mapping of T cells create unique map of activation process"
 date: 2022-05-26
 image_filename: "soskic-natgen-2022.png"
-image_alt_text: "UMAP of the T cells showing their progression through different activation time points"
+image_alt_text: "Nature Genetics cover image of a UMAP of the T cells"
 link: "http://dx.doi.org/10.1038/s41588-022-01066-3"
 ---
 Continuing their previous work published in 2019, a team of Open Targets researchers create a one-of-a-kind, detailed map of gene expression dynamics during the T cell activation process, uncovering new biology and prioritising targets for new therapies.