diff --git a/appveyor.yml b/appveyor.yml
index 5269e75ce0915a8c65354c17deb034629da2c6c4..d6db11e43eac5293d033f88f886464166d44d25e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -47,7 +47,7 @@ install:
 - cmd: conda config --add channels wheeler-microfluidics
 - cmd: conda update -q conda
 - cmd: conda info -a
-- cmd: conda install --yes conda-build setuptools pip pytest-pylint parameterized cryptography secp256k1prp
+- cmd: conda install --yes conda-build setuptools pip pytest-pylint parameterized cryptography
 - cmd: conda install --yes pycryptodomex scrypt pyyaml pytest pytest-mock coverage mock appdirs pylibscrypt
 - cmd: conda install --yes ecdsa requests future websocket-client pytz six Click events prettytable pyinstaller
 
diff --git a/beempy-onedir.spec b/beempy-onedir.spec
index f3ec3f669b4c4977f2ba5e4059e077aaf0673260..a3de1682714d8f2920fea174e72820525eebeaac 100644
--- a/beempy-onedir.spec
+++ b/beempy-onedir.spec
@@ -25,7 +25,7 @@ a = Analysis(['beem/cli.py'],
              pathex=['beem'],
              binaries=binaries,
              datas=analysis_data,
-             hiddenimports=['scrypt', '_scrypt', 'websocket', 'pylibscrypt', 'cffi', 'secp256k1prp'],
+             hiddenimports=['scrypt', '_scrypt', 'websocket', 'pylibscrypt', 'cffi'],
              hookspath=[],
              runtime_hooks=[],
              excludes=['matplotlib', 'scipy', 'pandas', 'numpy', 'PyQt5', 'tkinter'],
diff --git a/beempy-onefile.spec b/beempy-onefile.spec
index 74d1064e6292fffc7111b32b9e041ed1a80b676e..659e690311d0717f1cf3c03f3e479fd1f2862551 100644
--- a/beempy-onefile.spec
+++ b/beempy-onefile.spec
@@ -26,7 +26,7 @@ a = Analysis(['beem/cli.py'],
              pathex=['beem'],
              binaries=binaries,
              datas=analysis_data,
-             hiddenimports=['scrypt', '_scrypt', 'websocket', 'pylibscrypt', 'cffi', 'secp256k1prp'],
+             hiddenimports=['scrypt', '_scrypt', 'websocket', 'pylibscrypt', 'cffi'],
              hookspath=[],
              runtime_hooks=[],
              excludes=['matplotlib', 'scipy', 'pandas', 'numpy', 'PyQt5', 'tkinter'],