diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.0.6.0
+
+- Added functions `nullifyKeysIn` and `nullifyKeysNotIn` to `MonoidMap`.
+
 # 0.0.5.2
 
 - Updated links to source repository in package metadata.
diff --git a/components/monoidmap/Data/MonoidMap.hs b/components/monoidmap/Data/MonoidMap.hs
--- a/components/monoidmap/Data/MonoidMap.hs
+++ b/components/monoidmap/Data/MonoidMap.hs
@@ -36,7 +36,11 @@
     -- ** Modification
     , set
     , adjust
+
+    -- ** Nullification
     , nullify
+    , nullifyKeysIn
+    , nullifyKeysNotIn
 
     -- ** Membership
     , null
diff --git a/monoidmap.cabal b/monoidmap.cabal
--- a/monoidmap.cabal
+++ b/monoidmap.cabal
@@ -1,6 +1,6 @@
 cabal-version:  3.0
 name:           monoidmap
-version:        0.0.5.2
+version:        0.0.6.0
 homepage:       https://github.com/jonathanknowles/monoidmap
 bug-reports:    https://github.com/jonathanknowles/monoidmap/issues
 license:        Apache-2.0
@@ -28,7 +28,7 @@
 common dependency-monoid-subclasses
     build-depends:monoid-subclasses             >= 1.2.3      && < 1.3
 common dependency-monoidmap-internal
-    build-depends:monoidmap-internal            >= 0.1.0.0    && < 0.2
+    build-depends:monoidmap-internal            >= 0.1.1.0    && < 0.2
 common dependency-nothunks
     build-depends:nothunks                      >= 0.1.3      && < 0.4