diff --git a/oeis.cabal b/oeis.cabal
--- a/oeis.cabal
+++ b/oeis.cabal
@@ -1,5 +1,5 @@
 name:         oeis
-version:      0.3.5
+version:      0.3.6
 category:     Math
 stability:    experimental
 
@@ -25,6 +25,11 @@
 
 --------------------------------------------------------------------------------
 
+flag network-uri
+  description: Get Network.URI from the network-uri package
+  default: True
+
+
 library
   default-language: Haskell2010
 
@@ -41,8 +46,12 @@
 
   build-depends:
     HTTP    == 4000.2.*,
-    base    >= 3 && < 5,
-    network == 2.4.*
+    base    >= 3 && < 5
+
+  if flag(network-uri)
+    build-depends: network-uri >= 2.6, network >= 2.6
+  else
+    build-depends: network-uri < 2.6, network < 2.6
 
 --------------------------------------------------------------------------------