diff --git a/seminar.md b/seminar.md
index eea32a3cebc7081f414969b4c0f8f80b560638b6..b888f1572c9f559e240194af5789555241999c52 100644
--- a/seminar.md
+++ b/seminar.md
@@ -31,8 +31,8 @@ and a mattermost channel for chat. To join the mattermost channel:
 |Date|Speaker|Title/Topic|
 |----|-------|-----------|
 |2020-12-07|Deyan Ginev|Language and mathematics pretraining in 2021: preparing the large open datasets|
-|2020-12-21| ? | ? |
-|2021-01-04| ? | ? |
+|2020-12-21| Deborah Mendes Ferreira | How to represent mathematical statements for the task of finding relevant mathematical (textual) premises? |
+|2021-01-04| Takuto Asakura | Grounding of formulae? |
 |2021-01-18| ? | ? |
 |2021-02-01| ? | ? |
 |2021-02-15| ? | ? |