diff --git a/doc/ai4dev/README.md b/doc/ai4dev/README.md
index e45a491..14bc31c 100644
--- a/doc/ai4dev/README.md
+++ b/doc/ai4dev/README.md
@@ -50,11 +50,11 @@ Follow the [vibe coding](#vibe-coding) steps except as described below:
   LLM's most recent response leads to compile-time or runtime errors or if any
   tests fail, update the test-suite program, replacing laplacian with the most
   recent LLM response. Attach the updated program to each prompt.
-* In the second bullet of vibe coding step 7, replace the suggested text wit
+* In the second bullet of vibe coding step 6, replace the suggested text wit
   "Please fix the above errors that were generated by compiling the attached
   program, which contains an incorrect laplacian procedure."  If the program
   compiled but runtime errors resulted, replace "compiling" with "running" in
   the previous sentence.  If the program ran without errors, but tests failed,
   replace "compiling" with "running" and replace "errors" with "test failures".
-* Skip the third bullet in vibe coding step 7 because with idiomatic vibe
+* Skip the third bullet in vibe coding step 6 because with idiomatic vibe
   coding, the complete software stack is contained in an attachment.