diff --git a/.gitignore b/.gitignore
index e61d52c..b7f8760 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,4 @@ __pycache__/
 
 # py.test stuff
 .pytest_cache/
+.vscode/
diff --git a/requirements.txt b/requirements.txt
index 957213f..269e19e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ ecdsa>=0.18.0,<1
 crcmod>=1.7,<2
 pycryptodome>=3.20,<4
 ed25519-blake2b>=1.4.1,<2
-coincurve>=20.0.0,<21
+coincurve>=20.0.0,<=21.0.0
 pynacl>=1.6.2,<2
 base58>=2.1.1,<3
 cbor2>=5.6.1,<6