diff --git a/opaleye-trans.cabal b/opaleye-trans.cabal
--- a/opaleye-trans.cabal
+++ b/opaleye-trans.cabal
@@ -1,5 +1,5 @@
 name:                opaleye-trans
-version:             0.3.6
+version:             0.3.7
 synopsis:            A monad transformer for Opaleye
 description:         A monad transformer for Opaleye
 homepage:            https://github.com/WraithM/opaleye-trans
@@ -26,7 +26,7 @@
     mtl                 >=2.2 && <2.3,
     transformers        >=0.3 && <0.6,
     transformers-base   >=0.4 && <0.5,
-    opaleye             >=0.4 && <0.6,
+    opaleye             >=0.4 && <0.7,
     postgresql-simple   >=0.4 && <0.6,
     product-profunctors >=0.6 && <0.9
 
@@ -36,7 +36,7 @@
   default-language:    Haskell2010
   build-depends:
     base                >=4.8 && <4.11,
-    opaleye             >=0.4 && <0.6,
+    opaleye             >=0.4 && <0.7,
     postgresql-simple   >=0.4 && <0.6,
     product-profunctors >=0.6 && <0.9,
     opaleye-trans
@@ -47,7 +47,7 @@
   default-language:    Haskell2010
   build-depends:
     base                >=4.8 && <4.11,
-    opaleye             >=0.4 && <0.6,
+    opaleye             >=0.4 && <0.7,
     postgresql-simple   >=0.4 && <0.6,
     product-profunctors >=0.6 && <0.9,
     opaleye-trans
diff --git a/src/Opaleye/Trans.hs b/src/Opaleye/Trans.hs
--- a/src/Opaleye/Trans.hs
+++ b/src/Opaleye/Trans.hs
@@ -117,7 +117,7 @@
 
 -- | Insert into a 'Table'. See 'runInsert'.
 insert :: Table w r -> w -> Transaction Int64
-insert t w = withConnIO (\c -> runInsert c t w)
+insert t w = withConnIO (\c -> runInsertMany c t [w])
 
 
 -- | Insert many records into a 'Table'. See 'runInsertMany'.
@@ -132,7 +132,7 @@
     -> (r -> a)
     -> w
     -> Transaction [b]
-insertReturning t ret w = withConnIO (\c -> runInsertReturning c t w ret)
+insertReturning t ret w = withConnIO (\c -> runInsertManyReturning c t [w] ret)
 
 
 -- | Insert a record into a 'Table' with a return value. Retrieve only the first result.