diff --git a/pisa/requirements-dev.txt b/pisa/requirements-dev.txt
new file mode 100644
index 0000000..b18071f
--- /dev/null
+++ b/pisa/requirements-dev.txt
@@ -0,0 +1,3 @@
+pytest
+black
+bitcoind_mock
\ No newline at end of file
diff --git a/pisa/requirements.txt b/pisa/requirements.txt
index 024cf09..688603f 100644
--- a/pisa/requirements.txt
+++ b/pisa/requirements.txt
@@ -2,5 +2,4 @@ zmq
 flask
 cryptography
 requests
-plyvel
-pytest
\ No newline at end of file
+plyvel
\ No newline at end of file