diff --git a/Pipfile b/Pipfile
index 0738e023c..5319e97f8 100644
--- a/Pipfile
+++ b/Pipfile
@@ -19,7 +19,7 @@ pysha3="*"
 requests = "*"
 sqlalchemy = "*"
 maya = "*"
-apistar = "<0.6.0"
+flask = "*"
 # Third-Party Ethereum
 py-evm = "==0.2.0a39"
 eth-tester = "*"
diff --git a/requirements.txt b/requirements.txt
index 4244102b8..3c1c1442d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 -i https://pypi.python.org/simple
-apistar==0.5.42
 appdirs==1.4.3
 argh==0.26.2
 asn1crypto==0.24.0
@@ -31,6 +30,7 @@ eth-rlp==0.1.2
 eth-tester==0.1.0b36
 eth-typing==2.0.0
 eth-utils==1.4.1
+Flask==1.0.2
 hendrix==3.1.0
 hexbytes==0.1.0
 humanize==0.5.1