diff --git a/requirements.txt b/requirements.txt
index 9e6e6ce0..0754efdd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -92,9 +92,9 @@ botocore==1.19.52 \
     #   aiobotocore
     #   boto3
     #   s3transfer
-chardet==3.0.4 \
-    --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae \
-    --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691
+chardet==4.0.0 \
+    --hash=sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa \
+    --hash=sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5
     # via aiohttp
 click==7.1.2 \
     --hash=sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a \
diff --git a/test-requirements.txt b/test-requirements.txt
index 14d92478..0b7ef185 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -33,9 +33,9 @@ certifi==2020.12.5 \
     --hash=sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c \
     --hash=sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830
     # via requests
-chardet==3.0.4 \
-    --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae \
-    --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691
+chardet==4.0.0 \
+    --hash=sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa \
+    --hash=sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5
     # via requests
 click==7.1.2 \
     --hash=sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a \