diff --git a/HISTORY.txt b/HISTORY.txt
index aa50e113..a619c250 100644
--- a/HISTORY.txt
+++ b/HISTORY.txt
@@ -1,3 +1,5 @@
+5.3.6:
+ - Addition of `pipenv lock --verbose`.
 5.3.5:
  - Addition of update --dry-run.
  - Removal of install --lock option.
diff --git a/pipenv/cli.py b/pipenv/cli.py
index 4335e5be..c4ff54ca 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -459,7 +459,7 @@ def get_downloads_info(names_map, section):
     return info
 
 
-def do_lock(no_hashes=True):
+def do_lock(no_hashes=True, verbose=False):
     """Executes the freeze functionality."""
 
     if no_hashes:
@@ -477,7 +477,7 @@ def do_lock(no_hashes=True):
 
         # Resolve dev-package dependencies.
         deps = convert_deps_to_pip(project.dev_packages, r=False)
-        results = resolve_deps(deps, sources=project.sources)
+        results = resolve_deps(deps, sources=project.sources, verbose=verbose)
 
         # Add develop dependencies to lockfile.
         for dep in results:
@@ -1016,8 +1016,9 @@ def uninstall(package_name=False, more_packages=False, three=None, python=False,
 @click.option('--three/--two', is_flag=True, default=None, help="Use Python 3/2 when creating virtualenv.")
 @click.option('--python', default=False, nargs=1, help="Specify which version of Python virtualenv should use.")
 @click.option('--hashes', is_flag=True, default=False, help="Generate hashes.")
+@click.option('--verbose', is_flag=True, default=False, help="Verbose mode.")
 @click.option('--requirements', '-r', is_flag=True, default=False, help="Generate output compatible with requirements.txt.")
-def lock(three=None, python=False, hashes=False, requirements=False):
+def lock(three=None, python=False, hashes=False, verbose=False, requirements=False):
     # Hack to invert hashing mode.
     no_hashes = not hashes
 
@@ -1027,7 +1028,7 @@ def lock(three=None, python=False, hashes=False, requirements=False):
     if requirements:
         do_init(dev=True, requirements=requirements, no_hashes=no_hashes)
 
-    do_lock(no_hashes=no_hashes)
+    do_lock(no_hashes=no_hashes, verbose=verbose)
 
 
 @click.command(help="Spawns a shell within the virtualenv.", context_settings=dict(
diff --git a/pipenv/utils.py b/pipenv/utils.py
index 53dd2045..44834041 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -5,6 +5,7 @@ import tempfile
 from piptools.resolver import Resolver
 from piptools.repositories.pypi import PyPIRepository
 from piptools.scripts.compile import get_pip_command
+from piptools import logging
 
 import requests
 import parse
@@ -21,7 +22,7 @@ class PipCommand(pip.basecommand.Command):
     name = 'PipCommand'
 
 
-def resolve_deps(deps, sources=None):
+def resolve_deps(deps, sources=None, verbose=False):
 
     constraints = []
 
@@ -43,6 +44,9 @@ def resolve_deps(deps, sources=None):
 
     pypi = PyPIRepository(pip_options=pip_options, session=requests)
 
+    if verbose:
+        logging.log.verbose = True
+
     r = Resolver(constraints=constraints, repository=pypi)
     results = []