diff --git a/reducers.cabal b/reducers.cabal
--- a/reducers.cabal
+++ b/reducers.cabal
@@ -1,6 +1,6 @@
 name:          reducers
 category:      Data, Math, Numerical, Semigroups
-version:       3.10
+version:       3.10.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -28,7 +28,7 @@
     transformers           >= 0.2      && < 0.4,
     bytestring             >= 0.9.1    && < 0.11,
     containers             >= 0.3      && < 0.6,
-    fingertree             >= 0.0.1    && < 0.2,
+    fingertree             >= 0.1      && < 0.2,
     hashable               >= 1.1.2.1  && < 1.3,
     text                   >= 0.11.1.5 && < 0.12,
     unordered-containers   >= 0.1.4    && < 0.3,