diff --git a/README.md b/README.md
index 124baca..655eac3 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ As shown in Figure 1, the region of interest is broken into a spatial structure:
 * *Households* - quantity per microcell is based on a probabilistic distribution. All individuals are assigned to one household and do not move households during the simulation.
 * *Places* - quantity per microcell is based on a probabilistic distribution. These are spaces where individuals might meet other individuals from different households, a workplace or a public park for example.
 
-[!Important]
+[!IMPORTANT]
 Follow **Step 2.1** instructions for an Epigeopop simulation or **Step 2.2** for a toy simulation.