diff --git a/example_dags/geospatial_ndvi_calculation/airflow/requirements.txt b/example_dags/geospatial_ndvi_calculation/airflow/requirements.txt
index 1c67509..e4a56b6 100644
--- a/example_dags/geospatial_ndvi_calculation/airflow/requirements.txt
+++ b/example_dags/geospatial_ndvi_calculation/airflow/requirements.txt
@@ -19,7 +19,7 @@ ibm-cos-sdk == 2.5.3
 affine==2.2.2
 attrs==18.2.0
 bs4==0.0.1
-certifi==2018.11.29
+certifi==2022.12.7
 chardet==3.0.4
 PyYAML==5.4
 pika==0.13.1
diff --git a/example_dags/geospatial_ndvi_calculation/requirements.txt b/example_dags/geospatial_ndvi_calculation/requirements.txt
index 6b21530..ce08779 100644
--- a/example_dags/geospatial_ndvi_calculation/requirements.txt
+++ b/example_dags/geospatial_ndvi_calculation/requirements.txt
@@ -6,7 +6,7 @@ boto3==1.10.35
 botocore==1.13.35
 branca==0.3.1
 cachetools==3.1.1
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 Click==7.0
 click-plugins==1.1.1