diff --git a/setup.py b/setup.py
index 38e6451..87091cc 100644
--- a/setup.py
+++ b/setup.py
@@ -7,15 +7,19 @@ setuptools.setup(
     scripts=['electrumx_server', 'electrumx_rpc', 'electrumx_compact_history'],
     python_requires='>=3.6',
     # via environment variables, in which case I've tested with 15.0.4
-    # "x11_hash" package (1.4) is required to sync DASH network.
-    # "x13_hash" package is required to sync BitcoinPlus network.
-    # "tribus_hash" package is required to sync Denarius network.
-    # "blake256" package is required to sync Decred network.
-    # "xevan_hash" package is required to sync Xuez network.
-    # "groestlcoin_hash" package is required to sync Groestlcoin network.
-    # "pycryptodomex" package is required to sync SmartCash network.
     install_requires=['aiorpcX>=0.15.0,<0.16', 'attrs',
                       'plyvel', 'pylru', 'aiohttp>=3.3'],
+    extras_require={
+        'rocksdb': ['python-rocksdb>=0.6.9'],
+        'uvloop': ['uvloop>=0.12.2'],   # Bump when the uvloop connection_lost bug is fixed
+        # For various coins
+        'blake256': ['blake256>=0.1.1'],
+        'crypto': ['pycryptodomex>=3.8.1'],
+        'groestl': ['groestlcoin-hash>=1.0.1'],
+        'tribus-hash': ['tribus-hash>=1.0.2'],
+        'xevan-hash': ['xeven-hash'],
+        'x11-hash': ['x11-hash>=1.4'],
+    },
     packages=setuptools.find_packages(include=('electrumx*',)),
     description='ElectrumX Server',
     author='Neil Booth',