diff --git a/README.md b/README.md
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@@ -4,7 +4,7 @@ This is an R program to visualize and analyze -omics data such as those from met
 
 ![FlowChart](FlowChart.png)
 
-## Current version: V2.2. Tested R version: 4.3.2.
+## Current version: V2.2.1. Tested R version: 4.3.2.
 
 **Highlighted updates in V2.2:** Bulk RNA-seq analysis starting from a raw count table was added. DESeq2 is used for bulk RNA-seq data normalization and differential tests. clusterProfiler ORA and QEA analyses were added for gene/protein data. PLS-DA plot was added. Spearman and Kendall correlation plots were added. Analysis without erasing previous results was enabled. Bug fixes.