diff --git a/news/4885.bugfix.rst b/news/4885.bugfix.rst
new file mode 100644
index 0000000000..77ebf82cba
--- /dev/null
+++ b/news/4885.bugfix.rst
@@ -0,0 +1 @@
+Fix regression where lockfiles would only include the hashes for releases for the platform generating the lockfile
diff --git a/pipenv/utils.py b/pipenv/utils.py
index cb2cecd1d0..1f6556f908 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -428,6 +428,7 @@ def __init__(
         self._parsed_constraints = None
         self._resolver = None
         self._finder = None
+        self._ignore_compatibility_finder = None
         self._session = None
         self._constraint_file = None
         self._pip_options = None
@@ -798,6 +799,22 @@ def finder(self):
             )
         return self._finder
 
+    @property
+    def ignore_compatibility_finder(self):
+        from pipenv.vendor.pip_shims import shims
+        if self._ignore_compatibility_finder is None:
+            ignore_compatibility_finder = shims.get_package_finder(
+                install_cmd=self.pip_command,
+                options=self.pip_options,
+                session=self.session,
+            )
+            # It would be nice if `shims.get_package_finder` took an
+            # `ignore_compatibility` parameter, but that's some vendorered code
+            # we'd rather avoid touching.
+            ignore_compatibility_finder._ignore_compatibility = True
+            self._ignore_compatibility_finder = ignore_compatibility_finder
+        return self._ignore_compatibility_finder
+
     @property
     def parsed_constraints(self):
         from pipenv.vendor.pip_shims import shims
@@ -950,7 +967,7 @@ def collect_hashes(self, ireq):
             if hashes:
                 return hashes
 
-        applicable_candidates = self.finder.find_best_candidate(
+        applicable_candidates = self.ignore_compatibility_finder.find_best_candidate(
             ireq.name, ireq.specifier
         ).iter_applicable()
         return {
diff --git a/pipenv/vendor/pip_shims/compat.py b/pipenv/vendor/pip_shims/compat.py
index f01f5feaec..4dd596ea7b 100644
--- a/pipenv/vendor/pip_shims/compat.py
+++ b/pipenv/vendor/pip_shims/compat.py
@@ -693,6 +693,7 @@ def get_package_finder(
         and "ignore_requires_python" in builder_args.args
     ):
         build_kwargs["ignore_requires_python"] = ignore_requires_python
+
     return install_cmd._build_package_finder(**build_kwargs)  # type: ignore
 
 
diff --git a/tests/integration/test_lock.py b/tests/integration/test_lock.py
index 9168b6b7c4..e1235f5401 100644
--- a/tests/integration/test_lock.py
+++ b/tests/integration/test_lock.py
@@ -5,6 +5,7 @@
 
 import pytest
 
+import pytest_pypi.app
 from flaky import flaky
 from vistir.misc import to_text
 from pipenv.utils import temp_environ
@@ -57,6 +58,41 @@ def test_lock_requirements_file(PipenvInstance):
             assert req in d.stdout
 
 
+@pytest.mark.lock
+def test_lock_includes_hashes_for_all_platforms(PipenvInstance):
+    """ Locking should include hashes for *all* platforms, not just the
+    platform we're running lock on. """
+
+    releases = pytest_pypi.app.packages['yarl'].releases
+    def get_hash(release_name):
+        # Convert a specific filename to a hash like what would show up in a Pipfile.lock.
+        # For example:
+        # 'yarl-1.3.0-cp35-cp35m-manylinux1_x86_64.whl' -> 'sha256:3890ab952d508523ef4881457c4099056546593fa05e93da84c7250516e632eb'
+        return f"sha256:{releases[release_name].hash}"
+
+    with PipenvInstance() as p:
+        with open(p.pipfile_path, 'w') as f:
+            contents = """
+[packages]
+yarl = "==1.3.0"
+            """.strip()
+            f.write(contents)
+
+        c = p.pipenv('lock')
+        assert c.returncode == 0
+
+        lock = p.lockfile
+        assert 'yarl' in lock['default']
+        assert set(lock['default']['yarl']['hashes']) == {
+            get_hash('yarl-1.3.0-cp35-cp35m-manylinux1_x86_64.whl'),
+            get_hash('yarl-1.3.0-cp35-cp35m-win_amd64.whl'),
+            get_hash('yarl-1.3.0-cp36-cp36m-manylinux1_x86_64.whl'),
+            get_hash('yarl-1.3.0-cp36-cp36m-win_amd64.whl'),
+            get_hash('yarl-1.3.0-cp37-cp37m-win_amd64.whl'),
+            get_hash('yarl-1.3.0.tar.gz'),
+        }
+
+
 @pytest.mark.lock
 @pytest.mark.keep_outdated
 def test_lock_keep_outdated(PipenvInstance):