diff --git a/pipenv/cli.py b/pipenv/cli.py
index 1f6bdc29..bfd13743 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -632,77 +632,80 @@ def do_lock(verbose=False):
     # Create the lockfile.
     lockfile = project._lockfile
 
-    # Cleanup lockfile.
-    for section in ('default', 'develop'):
-        for k, v in lockfile[section].copy().items():
-            if not hasattr(v, 'keys'):
-                del lockfile[section][k]
+    with spinner():
+        # Cleanup lockfile.
+        for section in ('default', 'develop'):
+            for k, v in lockfile[section].copy().items():
+                if not hasattr(v, 'keys'):
+                    del lockfile[section][k]
 
-    # Resolve dev-package dependencies, with pip-tools.
-    deps = convert_deps_to_pip(project.dev_packages, r=False)
-    results = resolve_deps(deps, sources=project.sources, verbose=verbose)
+        # Resolve dev-package dependencies, with pip-tools.
+        deps = convert_deps_to_pip(project.dev_packages, r=False)
+        results = resolve_deps(deps, sources=project.sources, verbose=verbose)
 
-    # Add develop dependencies to lockfile.
-    for dep in results:
-        lockfile['develop'].update({dep['name']: {'version': '=={0}'.format(dep['version'])}})
-        lockfile['develop'][dep['name']]['hashes'] = dep['hashes']
+        # Add develop dependencies to lockfile.
+        for dep in results:
+            lockfile['develop'].update({dep['name']: {'version': '=={0}'.format(dep['version'])}})
+            lockfile['develop'][dep['name']]['hashes'] = dep['hashes']
 
-    # Add refs for VCS installs.
-    # TODO: be smarter about this.
-    vcs_deps = convert_deps_to_pip(project.vcs_dev_packages, r=False)
-    pip_freeze = delegator.run('{0} freeze'.format(which_pip())).out
+        # Add refs for VCS installs.
+        # TODO: be smarter about this.
+        vcs_deps = convert_deps_to_pip(project.vcs_dev_packages, r=False)
+        pip_freeze = delegator.run('{0} freeze'.format(which_pip())).out
 
-    for dep in vcs_deps:
-        for line in pip_freeze.strip().split('\n'):
-            try:
-                installed = convert_deps_from_pip(line)
-                name = list(installed.keys())[0]
+        for dep in vcs_deps:
+            for line in pip_freeze.strip().split('\n'):
+                try:
+                    installed = convert_deps_from_pip(line)
+                    name = list(installed.keys())[0]
 
-                if is_vcs(installed[name]):
-                    lockfile['develop'].update(installed)
-            except IndexError:
-                pass
+                    if is_vcs(installed[name]):
+                        lockfile['develop'].update(installed)
+                except IndexError:
+                    pass
 
     # Alert the user of progress.
     click.echo(crayons.yellow(u'Locking {0} dependencies…'.format(crayons.red('[packages]'))), err=True)
 
-    # Resolve package dependencies, with pip-tools.
-    deps = convert_deps_to_pip(project.packages, r=False)
-    results = resolve_deps(deps, sources=project.sources)
+    with spinner():
+        # Resolve package dependencies, with pip-tools.
+        deps = convert_deps_to_pip(project.packages, r=False)
+        results = resolve_deps(deps, sources=project.sources)
 
-    # Add default dependencies to lockfile.
-    for dep in results:
-        lockfile['default'].update({dep['name']: {'version': '=={0}'.format(dep['version'])}})
-        lockfile['default'][dep['name']]['hashes'] = dep['hashes']
+        # Add default dependencies to lockfile.
+        for dep in results:
+            lockfile['default'].update({dep['name']: {'version': '=={0}'.format(dep['version'])}})
+            lockfile['default'][dep['name']]['hashes'] = dep['hashes']
 
-    # Add refs for VCS installs.
-    # TODO: be smarter about this.
-    vcs_deps = convert_deps_to_pip(project.vcs_packages, r=False)
-    pip_freeze = delegator.run('{0} freeze'.format(which_pip())).out
+        # Add refs for VCS installs.
+        # TODO: be smarter about this.
+        vcs_deps = convert_deps_to_pip(project.vcs_packages, r=False)
+        pip_freeze = delegator.run('{0} freeze'.format(which_pip())).out
 
-    for dep in vcs_deps:
-        for line in pip_freeze.strip().split('\n'):
-            try:
-                installed = convert_deps_from_pip(line)
-                name = list(installed.keys())[0]
+        for dep in vcs_deps:
+            for line in pip_freeze.strip().split('\n'):
+                try:
+                    installed = convert_deps_from_pip(line)
+                    name = list(installed.keys())[0]
 
-                if is_vcs(installed[name]):
-                    lockfile['default'].update(installed)
-            except IndexError:
-                pass
+                    if is_vcs(installed[name]):
+                        lockfile['default'].update(installed)
+                except IndexError:
+                    pass
 
-    # Run the PEP 508 checker in the virtualenv, add it to the lockfile.
-    cmd = '"{0}" {1}'.format(which('python'), shellquote(pep508checker.__file__.rstrip('cdo')))
-    c = delegator.run(cmd)
-    lockfile['_meta']['host-environment-markers'] = json.loads(c.out)
+    with spinner():
+        # Run the PEP 508 checker in the virtualenv, add it to the lockfile.
+        cmd = '"{0}" {1}'.format(which('python'), shellquote(pep508checker.__file__.rstrip('cdo')))
+        c = delegator.run(cmd)
+        lockfile['_meta']['host-environment-markers'] = json.loads(c.out)
 
-    # Write out the lockfile.
-    with open(project.lockfile_location, 'w') as f:
-        json.dump(lockfile, f, indent=4, separators=(',', ': '), sort_keys=True)
-        # Write newline at end of document. GH Issue #319.
-        f.write('\n')
+        # Write out the lockfile.
+        with open(project.lockfile_location, 'w') as f:
+            json.dump(lockfile, f, indent=4, separators=(',', ': '), sort_keys=True)
+            # Write newline at end of document. GH Issue #319.
+            f.write('\n')
 
-    click.echo('{0} Pipfile.lock{1}'.format(crayons.yellow('Updated'), crayons.yellow('!')), err=True)
+        click.echo('{0} Pipfile.lock{1}'.format(crayons.yellow('Updated'), crayons.yellow('!')), err=True)
 
 
 def activate_virtualenv(source=True):