diff --git a/tests/fixtures.py b/tests/fixtures.py
index ec01959f2..8cd8c71e4 100644
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -144,6 +144,17 @@ def plan_summary(module_path, basedir, tf_var_files=None, extra_files=None,
     return PlanSummary(values, dict(counts), outputs)
 
 
+def filter_plan_values(values, ignored_attributes):
+  """Remove ignored attributes from plan values."""
+  if not ignored_attributes:
+    return values
+  for addr, resource_values in values.items():
+    if isinstance(resource_values, dict):
+      for attr in ignored_attributes:
+        resource_values.pop(attr, None)
+  return values
+
+
 @pytest.fixture(name='plan_summary')
 def plan_summary_fixture(request):
   """Return a function to generate a PlanSummary.
diff --git a/tools/plan_summary.py b/tools/plan_summary.py
index 33a2d1a7b..471a93ad9 100755
--- a/tools/plan_summary.py
+++ b/tools/plan_summary.py
@@ -39,6 +39,10 @@ except ImportError:
   sys.path.append(str(BASEDIR / 'tests'))
   import fixtures
 
+FILTERED_ATTRIBUTES = [
+    'source_md5hash',
+]
+
 
 @click.command()
 @click.option('--example', default=False, is_flag=True)
@@ -62,7 +66,8 @@ def main(example, module, tfvars, extra_files, extra_dirs):
     summary = fixtures.plan_summary(module, Path(), tfvars,
                                     extra_files=extra_files,
                                     extra_dirs=extra_dirs)
-    print(yaml.dump({'values': summary.values}))
+    values = fixtures.filter_plan_values(summary.values, FILTERED_ATTRIBUTES)
+    print(yaml.dump({'values': values}))
     print(yaml.dump({'counts': summary.counts}))
     outputs = {
         k: v.get('value', '__missing__') for k, v in summary.outputs.items()
diff --git a/tools/tftest_plan_summary.py b/tools/tftest_plan_summary.py
index 65c6bea5a..85f0d8414 100755
--- a/tools/tftest_plan_summary.py
+++ b/tools/tftest_plan_summary.py
@@ -27,6 +27,10 @@ except ImportError:
   sys.path.append(str(BASEDIR / 'tests'))
   import fixtures
 
+FILTERED_ATTRIBUTES = [
+    'source_md5hash',
+]
+
 
 @click.command()
 @click.argument('test_file', type=click.Path(), nargs=1)
@@ -52,7 +56,8 @@ def main(test_file, test_name):
                                   extra_files=extra_files,
                                   extra_dirs=extra_dirs)
 
-  print(yaml.dump({'values': summary.values}))
+  values = fixtures.filter_plan_values(summary.values, FILTERED_ATTRIBUTES)
+  print(yaml.dump({'values': values}))
   print(yaml.dump({'counts': summary.counts}))
   outputs = {
       k: v.get('value', '__missing__') for k, v in summary.outputs.items()