diff --git a/requirements.txt b/requirements.txt
index 987d124..2636515 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-fastecdsa==1.6.4
+fastecdsa==2.1.2
 base58==1.0.0
 # Additional requirements go here
diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 4a8f7e7..228299b
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ def get_version(*file_paths):
         'scatterauth',
     ],
     include_package_data=True,
-    install_requires=['fastecdsa==1.6.4', 'base58==1.0.0'],
+    install_requires=['fastecdsa==2.1.2', 'base58==1.0.0'],
     license="MIT",
     zip_safe=False,
     keywords='django-scatter-auth',