diff --git a/environment.yml b/environment.yml
index 26f6755b..0eb77abc 100644
--- a/environment.yml
+++ b/environment.yml
@@ -8,7 +8,9 @@ dependencies:
   - pandas
   - numpy
   - ruamel.yaml
-  - snakemake >=6.10
+  - snakemake >=7.0
   - openpyxl
   - natsort
   - biopython >=1.73
+  - seaborn
+  - matplotlib
diff --git a/metapi/__about__.py b/metapi/__about__.py
index 11523520..56f89c47 100644
--- a/metapi/__about__.py
+++ b/metapi/__about__.py
@@ -1,4 +1,4 @@
 #!/usr/bin/env python3
 
-__version__ = '2.1.1'
+__version__ = '2.1.2'
 __author__ = "Jie Zhu, Fangming Yang"
diff --git a/metapi/snakefiles/gene_wf.smk b/metapi/snakefiles/gene_wf.smk
index 59102684..dfb6a7c2 100644
--- a/metapi/snakefiles/gene_wf.smk
+++ b/metapi/snakefiles/gene_wf.smk
@@ -3,6 +3,9 @@
 import sys
 import metapi
 import pandas as pd
+from snakemake.utils import min_version
+
+min_version(7.0)
 
 shell.executable("bash")
 
diff --git a/metapi/snakefiles/mag_wf.smk b/metapi/snakefiles/mag_wf.smk
index c10d5383..fc7c02ef 100644
--- a/metapi/snakefiles/mag_wf.smk
+++ b/metapi/snakefiles/mag_wf.smk
@@ -4,6 +4,9 @@ import sys
 import metapi
 import pandas as pd
 from pprint import pprint
+from snakemake.utils import min_version
+
+min_version(7.0)
 
 shell.executable("bash")
 
diff --git a/requirements.txt b/requirements.txt
index e2f75225..ce53d8c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,9 @@
 numpy
 pandas
 openpyxl
-snakemake
+snakemake >=7.0
 ruamel.yaml
 natsort
 biopython >=1.73
+seaborn
+matplotlib