diff --git a/python/private/py_wheel.bzl b/python/private/py_wheel.bzl
index 15fdc78..b4fbf4b 100644
--- a/python/private/py_wheel.bzl
+++ b/python/private/py_wheel.bzl
@@ -44,7 +44,7 @@
                 pypi_version = tag[len("pypi_version="):]
 
         if pypi_name and pypi_version:
-            requirement = "{}=={}".format(pypi_name, pypi_version)
+            requirement = "{}~={}".format(pypi_name, pypi_version)
 
     if hasattr(ctx.rule.attr, "deps"):
         requirements = depset(