diff --git a/requirements.txt b/requirements.txt
index ebe3758..80ec5db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ attrs==19.1.0
 attrdict==2.0.1
 attrs==19.1.0
 base58==1.0.3
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 cytoolz==0.10.1
 eth-abi==2.0.0
diff --git a/setup.py b/setup.py
index d765a14..d131378 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
             "attrs==19.1.0",
             "attrdict==2.0.1",
             "base58==1.0.3",
-            "certifi==2019.9.11",
+            "certifi==2022.12.7",
             "chardet==3.0.4",
             "cytoolz==0.10.1",
             "eth-abi==2.0.0",