diff --git a/Pipfile b/Pipfile
index b2f7ea3..02d35c4 100644
--- a/Pipfile
+++ b/Pipfile
@@ -23,7 +23,7 @@ pytest-cov = "*"
 
 [packages]
 
-certifi = "==2019.11.28"
+certifi = "==2020.4.5.1"
 chardet = "*"
 idna = "*"
 mccabe = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
index b3c0525..54671ee 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,10 +18,10 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
-                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
+                "sha256:1d987a998c75633c40847cc966fcf5904906c920a7f17ef374f5aa4282abd304",
+                "sha256:51fcb31174be6e6664c5f69e3e1691a2d72a1a12e90f872cbdb1567eb47b6519"
             ],
-            "version": "==2019.11.28"
+            "version": "==2020.4.5.1"
         },
         "chardet": {
             "hashes": [
diff --git a/requirements.txt b/requirements.txt
index 0c36bfe..0e32c76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.11.28
+certifi==2020.4.5.1
 chardet==3.0.4
 idna==2.8
 mccabe==0.6.1