diff --git a/graphenebase/ecdsa.py b/graphenebase/ecdsa.py
index 9238008f..3a864d64 100644
--- a/graphenebase/ecdsa.py
+++ b/graphenebase/ecdsa.py
@@ -20,7 +20,7 @@
 GMPY2_MODULE = False
 if not SECP256K1_MODULE:  # pragma: no branch
     try:
-        import secp256k1
+        import secp256k1prp as secp256k1
 
         SECP256K1_MODULE = "secp256k1"
         SECP256K1_AVAILABLE = True
diff --git a/graphenebase/signedtransactions.py b/graphenebase/signedtransactions.py
index aeee9775..d249a461 100644
--- a/graphenebase/signedtransactions.py
+++ b/graphenebase/signedtransactions.py
@@ -17,7 +17,7 @@
 log = logging.getLogger(__name__)
 
 try:
-    import secp256k1
+    import secp256k1prp as secp256k1
 
     USE_SECP256K1 = True
     log.debug("Loaded secp256k1 binding.")
diff --git a/requirements-test.txt b/requirements-test.txt
index 40a2f1fa..5fcaa5d5 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,7 +1,7 @@
 autobahn>=0.14
 pycrypto==2.6.1
 scrypt>=0.7.1
-secp256k1
+secp256k1prp
 pytest
 coverage
 mock