diff --git a/casr-logbook.cabal b/casr-logbook.cabal
--- a/casr-logbook.cabal
+++ b/casr-logbook.cabal
@@ -1,5 +1,5 @@
 name:               casr-logbook
-version:            0.2.0
+version:            0.2.1
 license:            OtherLicense
 license-file:       LICENSE
 author:             Tony Morris <ʇǝu˙sıɹɹoɯʇ@ןןǝʞsɐɥ>
@@ -36,11 +36,13 @@
                     , casr-logbook-types >= 0.0.1 && < 0.1
                     , casr-logbook-meta >= 0.0.4 && < 0.1
                     , casr-logbook-html >= 0.0.2 && < 0.1
-                    , casr-logbook-meta-html >= 0.0.3 && < 0.1
+                    , casr-logbook-meta-html >= 0.0.4 && < 0.1
                     , casr-logbook-reports >= 0.0.2 && < 0.1
                     , casr-logbook-reports-html >= 0.0.2 && < 0.1
                     , casr-logbook-reports-meta >= 0.0.3 && < 0.1
-                    , casr-logbook-reports-meta-html >= 0.0.2 && < 0.1
+                    , casr-logbook-reports-meta-html >= 0.0.3 && < 0.1
+                    , digit < 3 && >= 0.2.8
+                    , time < 2 && >= 1.5
 
   ghc-options:
                     -Wall
diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,9 @@
+0.2.1
+
+* Use `casr-logbook-meta-html-0.0.4`.
+* Use `casr-logbook-reports-meta-html-0.0.3`.
+* Export `Data.Time` and `Data.Digit` under logbook module.
+
 0.2.0
 
 * The contents of this package was moved to `casr-logbook-types`
diff --git a/src/Data/Aviation/Casr/Logbook.hs b/src/Data/Aviation/Casr/Logbook.hs
--- a/src/Data/Aviation/Casr/Logbook.hs
+++ b/src/Data/Aviation/Casr/Logbook.hs
@@ -10,3 +10,5 @@
 import Data.Aviation.Casr.Logbook.Reports.Html as L
 import Data.Aviation.Casr.Logbook.Reports.Meta as L
 import Data.Aviation.Casr.Logbook.Reports.Meta.Html as L
+import Data.Time as L
+import Data.Digit as L