diff --git a/samplesheets/assayapps/cytof/plugins.py b/samplesheets/assayapps/cytof/plugins.py
index da5c3b0b..008ff416 100644
--- a/samplesheets/assayapps/cytof/plugins.py
+++ b/samplesheets/assayapps/cytof/plugins.py
@@ -165,4 +165,4 @@ def update_cache(self, name=None, project=None, user=None):
         :param project: Project object to limit update to (optional)
         :param user: User object to denote user triggering the update (optional)
         """
-        self._update_cache_rows(APP_NAME, name, project, user)
+        self.update_cache_rows(APP_NAME, name, project, user)
diff --git a/samplesheets/assayapps/dna_sequencing/plugins.py b/samplesheets/assayapps/dna_sequencing/plugins.py
index 8030ca4a..405caea5 100644
--- a/samplesheets/assayapps/dna_sequencing/plugins.py
+++ b/samplesheets/assayapps/dna_sequencing/plugins.py
@@ -100,4 +100,4 @@ def update_cache(self, name=None, project=None, user=None):
         :param project: Project object to limit update to (optional)
         :param user: User object to denote user triggering the update (optional)
         """
-        self._update_cache_rows(APP_NAME, name, project, user)
+        self.update_cache_rows(APP_NAME, name, project, user)
diff --git a/samplesheets/assayapps/generic/plugins.py b/samplesheets/assayapps/generic/plugins.py
index 74de1d02..1eec422c 100644
--- a/samplesheets/assayapps/generic/plugins.py
+++ b/samplesheets/assayapps/generic/plugins.py
@@ -209,4 +209,4 @@ def update_cache(self, name=None, project=None, user=None):
         :param project: Project object to limit update to (optional)
         :param user: User object to denote user triggering the update (optional)
         """
-        self._update_cache_rows(APP_NAME, name, project, user)
+        self.update_cache_rows(APP_NAME, name, project, user)
diff --git a/samplesheets/assayapps/microarray/plugins.py b/samplesheets/assayapps/microarray/plugins.py
index f8ea7dbb..09a59f2e 100644
--- a/samplesheets/assayapps/microarray/plugins.py
+++ b/samplesheets/assayapps/microarray/plugins.py
@@ -148,4 +148,4 @@ def update_cache(self, name=None, project=None, user=None):
         :param project: Project object to limit update to (optional)
         :param user: User object to denote user triggering the update (optional)
         """
-        self._update_cache_rows(APP_NAME, name, project, user)
+        self.update_cache_rows(APP_NAME, name, project, user)
diff --git a/samplesheets/plugins.py b/samplesheets/plugins.py
index 5827c22e..52baed0f 100644
--- a/samplesheets/plugins.py
+++ b/samplesheets/plugins.py
@@ -987,7 +987,7 @@ def update_cache(self, name=None, project=None, user=None):
 
     # Common cache update utilities --------------------------------------
 
-    def _update_cache_rows(self, app_name, name=None, project=None, user=None):
+    def update_cache_rows(self, app_name, name=None, project=None, user=None):
         """
         Update cache for row-based iRODS links using get_row_path().
 
diff --git a/samplesheets/tests/test_plugins.py b/samplesheets/tests/test_plugins.py
index 0fea0d02..1bbb3a57 100644
--- a/samplesheets/tests/test_plugins.py
+++ b/samplesheets/tests/test_plugins.py
@@ -113,7 +113,7 @@ def setUp(self):
     def test_update_cache_rows(self):
         """Test update_cache_rows()"""
         self.assertIsNone(self.cache_backend.get_cache_item(**self.item_kwargs))
-        self.plugin._update_cache_rows(ASSAY_PLUGIN_NAME, project=self.project)
+        self.plugin.update_cache_rows(ASSAY_PLUGIN_NAME, project=self.project)
         cache_item = self.cache_backend.get_cache_item(**self.item_kwargs)
         self.assertIsNotNone(cache_item)
         self.assertTrue(
@@ -128,6 +128,6 @@ def test_update_invalid_path(self):
         m.name = 'invalid/../path'
         m.save()
         with self.assertRaises(ValueError):
-            self.plugin._update_cache_rows(
+            self.plugin.update_cache_rows(
                 ASSAY_PLUGIN_NAME, project=self.project
             )