diff --git a/eth/tracers/firehose_concurrency_2.md b/eth/tracers/firehose_concurrency_2.md
index fc09e73bd8..f509a4cb29 100644
--- a/eth/tracers/firehose_concurrency_2.md
+++ b/eth/tracers/firehose_concurrency_2.md
@@ -95,6 +95,8 @@ Model: Macbook Air \
 Processor: Apple M1 chip \
 Memory: 8 GB
 
+Geth version used is 1.15.10
+
 ### 4.1 Results
 
 The following outlines the results for metric three: