diff --git a/base/macaw-base.cabal b/base/macaw-base.cabal
index 6025317d..06554f67 100644
--- a/base/macaw-base.cabal
+++ b/base/macaw-base.cabal
@@ -38,7 +38,7 @@ library
     exceptions,
     filepath,
     galois-dwarf >= 0.2.2,
-    IntervalMap >= 0.5,
+    IntervalMap >= 0.6.2.0,
     lens >= 4.7,
     mtl,
     panic,