diff --git a/tests/indexhtml.py b/tests/indexhtml.py
index e5989e9..7e04bb4 100644
--- a/tests/indexhtml.py
+++ b/tests/indexhtml.py
@@ -16,6 +16,7 @@
 import ZODB
 from ZODB.FileStorage import FileStorage
 from BTrees.IOBTree import IOBTree
+import transaction
 
 from Products.ZCTextIndex.ZCTextIndex import ZCTextIndex
 from Products.ZCTextIndex.HTMLSplitter import HTMLWordSplitter
@@ -58,7 +59,7 @@ def make_old_index():
 def main(db, root, dir):
     rt["index"] = index = INDEX()
     rt["files"] = paths = IOBTree()
-    get_transaction().commit()
+    transaction.commit()
 
     zodb_time = 0.0
     pack_time = 0.0
@@ -83,7 +84,7 @@ def main(db, root, dir):
             f.close()
             if docid % TXN_INTERVAL == 0:
                 z0 = clock()
-                get_transaction().commit()
+                transaction.commit()
                 z1 = clock()
                 zodb_time += z1 - z0
                 if VERBOSE:
@@ -97,7 +98,7 @@ def main(db, root, dir):
                 if VERBOSE:
                     print "pack took", p1 - p0, pack_time
     z0 = clock()
-    get_transaction().commit()
+    transaction.commit()
     z1 = t1 = clock()
     total_time = t1 - t0
     zodb_time += z1 - z0
diff --git a/tests/mailtest.py b/tests/mailtest.py
index e8852d1..b415eef 100644
--- a/tests/mailtest.py
+++ b/tests/mailtest.py
@@ -42,6 +42,7 @@
 
 import ZODB
 import ZODB.FileStorage
+import transaction
 from Products.ZCTextIndex.Lexicon import \
      Lexicon, CaseNormalizer, Splitter, StopWordRemover
 from Products.ZCTextIndex.ZCTextIndex import ZCTextIndex
@@ -92,7 +93,7 @@ def index(rt, mboxfile, db, profiler):
         rt["documents"] = docs = IOBTree()
     else:
         docs = None
-    get_transaction().commit()
+    transaction.commit()
 
     mbox = mailbox.UnixMailbox(open(mboxfile, 'rb'))
     if VERBOSE:
@@ -107,7 +108,7 @@ def index(rt, mboxfile, db, profiler):
     idx_time += itime
     pack_time += ptime
 
-    get_transaction().commit()
+    transaction.commit()
 
     if PACK_INTERVAL and i % PACK_INTERVAL != 0:
         if VERBOSE >= 2:
@@ -148,7 +149,7 @@ def indexmbox(mbox, idx, docs, db):
         if not EXCLUDE_TEXT:
             docs[i] = msg
         if i % TXN_SIZE == 0:
-            get_transaction().commit()
+            transaction.commit()
         i1 = time.clock()
         idx_time += i1 - i0
         if VERBOSE and i % 50 == 0:
diff --git a/tests/mhindex.py b/tests/mhindex.py
index d8cbf01..9806d70 100644
--- a/tests/mhindex.py
+++ b/tests/mhindex.py
@@ -51,6 +51,7 @@
 from BTrees.IOBTree import IOBTree
 from BTrees.OIBTree import OIBTree
 from BTrees.IIBTree import IIBTree
+import transaction
 
 from Products.ZCTextIndex.NBest import NBest
 from Products.ZCTextIndex.OkapiIndex import OkapiIndex
@@ -552,7 +553,7 @@ def maycommit(self):
     def commit(self):
         if self.trans_count > 0:
             print "committing..."
-            get_transaction().commit()
+            transaction.commit()
             self.trans_count = 0
             self.pack_count += 1
             if self.pack_count >= self.pack_limit > 0:
diff --git a/tests/testIndex.py b/tests/testIndex.py
index 43adc2b..e9d9091 100644
--- a/tests/testIndex.py
+++ b/tests/testIndex.py
@@ -15,6 +15,8 @@
 import os
 from unittest import TestCase, TestSuite, main, makeSuite
 
+import transaction
+
 from BTrees.Length import Length
 from Products.ZCTextIndex.Lexicon import Lexicon, Splitter
 from Products.ZCTextIndex.CosineIndex import CosineIndex
@@ -178,7 +180,7 @@ def test_index_doc_conflict(self):
         self.openDB()
         r1 = self.db.open().root()
         r1['i'] = self.index
-        get_transaction().commit()
+        transaction.commit()
         
         r2 = self.db.open().root()
         copy = r2['i']
@@ -192,10 +194,10 @@ def test_index_doc_conflict(self):
         self.assertEqual(self.index._p_serial, copy._p_serial)
         
         self.index.index_doc(0, 'The time has come')
-        get_transaction().commit()
+        transaction.commit()
         
         copy.index_doc(1, 'That time has gone')
-        get_transaction().commit()
+        transaction.commit()
 
     def test_reindex_doc_conflict(self):
         self.index = OkapiIndex(Lexicon())
@@ -204,7 +206,7 @@ def test_reindex_doc_conflict(self):
         self.openDB()
         r1 = self.db.open().root()
         r1['i'] = self.index
-        get_transaction().commit()
+        transaction.commit()
         
         r2 = self.db.open().root()
         copy = r2['i']
@@ -218,10 +220,10 @@ def test_reindex_doc_conflict(self):
         self.assertEqual(self.index._p_serial, copy._p_serial)
         
         self.index.index_doc(0, 'Sometimes change isn\'t bad')
-        get_transaction().commit()
+        transaction.commit()
         
         copy.index_doc(1, 'Then again, who asked you?')
-        get_transaction().commit()
+        transaction.commit()
         
 class TestUpgrade(TestCase):
 
diff --git a/tests/testLexicon.py b/tests/testLexicon.py
index 086cb92..bdfb0ee 100644
--- a/tests/testLexicon.py
+++ b/tests/testLexicon.py
@@ -16,6 +16,7 @@
 from unittest import TestCase, TestSuite, main, makeSuite
 
 import ZODB
+import transaction
 
 from Products.ZCTextIndex.Lexicon import Lexicon
 from Products.ZCTextIndex.Lexicon import Splitter, CaseNormalizer
@@ -165,7 +166,7 @@ def testAddWordConflict(self):
         self.openDB()
         r1 = self.db.open().root()
         r1['l'] = self.l
-        get_transaction().commit()
+        transaction.commit()
         
         r2 = self.db.open().root()
         copy = r2['l']
@@ -177,11 +178,11 @@ def testAddWordConflict(self):
         self.assertEqual(self.l._p_serial, copy._p_serial)
         
         self.l.sourceToWordIds('mary had a little lamb')
-        get_transaction().commit()
+        transaction.commit()
         
         copy.sourceToWordIds('whose fleece was')
         copy.sourceToWordIds('white as snow')
-        get_transaction().commit()
+        transaction.commit()
         self.assertEqual(copy.length(), 11)
         self.assertEqual(copy.length(), len(copy._words))