diff --git a/src/plugins/markdown-report/README.md b/src/plugins/markdown-report/README.md
index 303d21b65cf4a96fcfc8a788fc4c966db447db5f..4e22e1d08d250a4bc9a0a92a479c5392a4ced5fe 100644
--- a/src/plugins/markdown-report/README.md
+++ b/src/plugins/markdown-report/README.md
@@ -6,7 +6,7 @@ Generation of pandoc reports.
 # Requirements
 
 - OCaml >= 4.04;
-- Frama-C 16 (Phosphorus)
+- Frama-C 15 (Phosphorus)
 - FlameGraph ([`https://github.com/brendangregg/FlameGraph`](https://github.com/brendangregg/FlameGraph))
 
 # Example