diff --git a/README.md b/README.md
index d249aed1..cee5a66f 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ For more details see https://dataportal.brainminds.jp/marmoset-tracer-injection
 |Date of birth|20110306|
 |Injection date|20160223|
 |Survival period (day)|29|
-| Tracer **#1** |(thy1-tTA 1/TRE-clover 1/TRE-Vamp2mPFC 1)x10e12 vg/ml|
+| Tracer **1.** |(thy1-tTA 1/TRE-clover 1/TRE-Vamp2mPFC 1)x10e12 vg/ml|
 | Injection Site|8aD|
 | Direction|anterograde|
 | Method|0.1ul x 1 (@ 1mm)/5min|