diff --git a/setup.py b/setup.py
index 39b45082..e01868ad 100644
--- a/setup.py
+++ b/setup.py
@@ -80,13 +80,13 @@ setup(
     description="A command line journal application that stores your journal in a plain text file",
     packages=['jrnl', 'jrnl.plugins'],
     install_requires=[
-        "parsedatetime>=1.2",
-        "pytz>=2013b",
-        "six>=1.7.4",
-        "cryptography>=0.8.1",
-        "tzlocal>=1.1",
+        "parsedatetime>=1.5",
+        "pytz>=2015.7",
+        "six>=1.10.0",
+        "cryptography==1.2.2",
+        "tzlocal>=1.2",
         "pyyaml>=3.11",
-        "keyring>=3.3",
+        "keyring==7.3",
         "passlib>=1.6.2",
         "pyxdg>=0.25",
     ] + [p for p, cond in conditional_dependencies.items() if cond],