diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,9 @@
+1.8.1
+=====
+
+* [#75](https://github.com/serokell/log-warper/issues/55):
+  Bump up `universum` lower bound.
+
 1.8.0
 =====
 
diff --git a/log-warper.cabal b/log-warper.cabal
--- a/log-warper.cabal
+++ b/log-warper.cabal
@@ -1,5 +1,5 @@
 name:                log-warper
-version:             1.8.0
+version:             1.8.1
 synopsis:            Flexible, configurable, monadic and pretty logging
 homepage:            https://github.com/serokell/log-warper
 license:             MIT
@@ -64,7 +64,7 @@
                      , time                 >= 1.6.0.1
                      , transformers         >= 0.5.2
                      , transformers-base    >= 0.4.4
-                     , universum            >= 0.7
+                     , universum            >= 0.9.1
                      , unordered-containers >= 0.2.7.1
                      , vector               >= 0.12
                      , yaml                 >= 0.8.20