diff --git a/appveyor/package_kiwix-desktop.sh b/appveyor/package_kiwix-desktop.sh
index d6da602..f47a747 100644
--- a/appveyor/package_kiwix-desktop.sh
+++ b/appveyor/package_kiwix-desktop.sh
@@ -7,7 +7,7 @@ then
   KIWIX_ARCHIVES_DIR=/c/projects/NIGHTLY_KIWIX_ARCHIVES/${NIGHTLY_DATE}
   KIWIX_DIR=kiwix-desktop_windows_x64_$NIGHTLY_DATE
 else
-  KIWIX_DESKTOP_VERSION=2.0-beta4
+  KIWIX_DESKTOP_VERSION=2.0-beta5
   KIWIX_ARCHIVES_DIR=/c/projects/RELEASE_KIWIX_ARCHIVES
   KIWIX_DIR=kiwix-desktop_windows_x64_${KIWIX_DESKTOP_VERSION}
 fi
diff --git a/kiwixbuild/versions.py b/kiwixbuild/versions.py
index ee8edbd..53a2040 100644
--- a/kiwixbuild/versions.py
+++ b/kiwixbuild/versions.py
@@ -1,12 +1,12 @@
 # This file reference all the versions of the depedencies we use in kiwix-build.
 
 main_project_versions = {
-    'kiwix-lib': '4.1.0',
-    'kiwix-tools': '1.2.1',
-    'libzim': '4.0.7',
-    'zim-tools': '1.0.1',
-    'zimwriterfs': '1.3.1',
-    'kiwix-desktop': '2.0-beta4' # Also need to be change in appveyor/package_kiwix-desktop.sh
+    'kiwix-lib': '5.1.0',
+    'kiwix-tools': '2.0.0',
+    'libzim': '5.0.0',
+    'zim-tools': '1.0.2',
+    'zimwriterfs': '1.3.2',
+    'kiwix-desktop': '2.0-beta5' # Also need to be change in appveyor/package_kiwix-desktop.sh
 }
 
 # This dictionnary specify what we need to build at each release process.
@@ -24,12 +24,12 @@ main_project_versions = {
 #    - Else, increment the value. If no value was present, see `(was ...)`.
 
 release_versions = {
-    'libzim': None, # Depends of base deps (was 0)
-    'kiwix-lib': None, # Depends of libzim (was 0)
+    'libzim': 0, # Depends of base deps (was 0)
+    'kiwix-lib': 0, # Depends of libzim (was 0)
     'kiwix-tools': 0, # Depends of kiwix-lib and libzim (was 0)
-    'zim-tools': None, # Depends of libzim (was 0)
-    'zimwriterfs': None, # Depends of libzim (was 0)
-    'kiwix-desktop': None # Depends of kiwix-lib and libzim (was 1)
+    'zim-tools': 0, # Depends of libzim (was 0)
+    'zimwriterfs': 0, # Depends of libzim (was 0)
+    'kiwix-desktop': 0 # Depends of kiwix-lib and libzim (was 1)
 }