diff --git a/kiwixbuild/versions.py b/kiwixbuild/versions.py
index c5087b1..b91e626 100644
--- a/kiwixbuild/versions.py
+++ b/kiwixbuild/versions.py
@@ -1,7 +1,7 @@
 # This file reference all the versions of the depedencies we use in kiwix-build.
 
 main_project_versions = {
-    'kiwix-lib': '8.2.2',
+    'kiwix-lib': '9.0.0',
     'kiwix-tools': '3.0.1', # Also need to change this in appveyor/install_kiwix-tools.cmd
     'libzim': '6.0.2',
     'zim-tools': '1.0.5',
@@ -32,10 +32,10 @@ main_project_versions = {
 
 release_versions = {
     'libzim': None, # Depends of base deps (was 0)
-    'kiwix-lib': None, # Depends of libzim (was 0)
+    'kiwix-lib': 0, # Depends of libzim (was 0)
     'kiwix-tools': None, # Depends of kiwix-lib and libzim (was 7)
     'zim-tools': None, # Depends of libzim (was 7)
-    'zimwriterfs': 0, # Depends of libzim (was 1)
+    'zimwriterfs': None, # Depends of libzim (was 1)
     'kiwix-desktop': None # Depends of kiwix-lib and libzim (was 0)
 }