diff --git a/CHANGELOG.md b/CHANGELOG.md
index deaba225..0135ce9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Add utility function to compute/check ZIM descriptions #110
 
+### Changed
+
+- Using pylibzim `3.4.0`
+
 ### Removed
 
 - Support for Python 3.7 (EOL)
diff --git a/requirements.txt b/requirements.txt
index 98a56d1e..c7fc799c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ colorthief==0.2.1
 python-resize-image>=1.1.19,<1.2
 Babel>=2.9,<3.0
 file-magic>=0.4.0,<0.5
-libzim>=3.1.0,<3.2
+libzim>=3.4.0,<3.5
 beautifulsoup4>=4.9.3,<4.10
 lxml>=4.6.3,<4.10
 optimize-images>=1.3.6,<1.6