diff --git a/courses/swuv.md b/courses/swuv.md
index 3870e1172474a96ef9b9d97dee2248da741d9229..22c032e35fa221afb6b2b8b62fa1fcb8cc700e72 100644
--- a/courses/swuv.md
+++ b/courses/swuv.md
@@ -63,7 +63,7 @@ Therefore, the seminar is well-suited for newcomers, e.g., students interested i
 | 06. 01. 2022 | cancelled |  |
 | 13. 01. 2021 | Fabian Brinkmann | Algebraic Language Theory |
 | 20. 01. 2021 | Tim Friederich| A Semantic Search Engine for Quality Management | BSc thesis presentation
-| 27. 01. 2021 | Navid Roux | Structure-Preserving Diagram Operators (date not certain yet) | MSc thesis presentation
+| 27. 01. 2021 | TBD | TBD |
 | 03. 02. 2021 | |  |
 | 10. 02. 2021 | Chase Ford | Coalgebra  | part of collaboration with Inf 8 group