1 files changed, 2 insertions, 2 deletions
diff --git a/README.md b/README.md
index ba989f5..d87c565 100644
--- a/README.md
+++ b/README.md
@@ -116,8 +116,8 @@ of a group is in bold italics.
 | **_8_b_1_**    | yes, in 8_a_2 | 210  | |
 | 8_b_2          | yes    |      | |
 | 8_b_3          | yes    |      | |
-| **_8_b_1_**    |        | 211  | |
-| 8_b_2          |        |      | |
+| **_8_c_1_**    |        | 211  | |
+| 8_c_2          |        |      | |
 | **_8_d_1_**    |        | 212  | |
 | **_9_a_1_**    |        | 221  | 9. I/O case study: a library for searching the filesystem |
 | **_9_b_1_**    |        | 228  | |