diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+0.12.1
+-----------------------------------------------------------------------------
+- Relax upper-bound of `fast-logger` dependency.
+
 0.12.0
 -----------------------------------------------------------------------------
 - Add support for logger-specific log-levels.
diff --git a/tinylog.cabal b/tinylog.cabal
--- a/tinylog.cabal
+++ b/tinylog.cabal
@@ -1,5 +1,5 @@
 name:                 tinylog
-version:              0.12.0
+version:              0.12.1
 synopsis:             Simplistic logging using fast-logger.
 author:               Toralf Wittner
 maintainer:           Toralf Wittner <tw@dtex.org>
@@ -40,7 +40,7 @@
         , auto-update       >= 0.1    && < 0.2
         , containers        >= 0.5
         , double-conversion >= 0.2    && < 3.0
-        , fast-logger       >= 2.1.4  && < 2.3
+        , fast-logger       >= 2.1.4  && < 3.0
         , text              >= 0.11   && < 2.0
         , transformers      >= 0.3    && < 1.0
         , unix-time         >= 0.1    && < 0.4
