diff --git a/documentation/dev-portal/book.toml b/documentation/dev-portal/book.toml
index ea3865b4e0..258ad6deb2 100644
--- a/documentation/dev-portal/book.toml
+++ b/documentation/dev-portal/book.toml
@@ -49,9 +49,9 @@ assets_version = "2.0.0" # do not edit: managed by `mdbook-admonish install`
 [preprocessor.variables.variables]
 # code prerequisites versions
 minimum_rust_version = "1.66"
-platform_release_version = "v1.1.18"
-upcoming_platform_release_version = "v1.1.19" # to use when adding 'edit on github' plugin
-mix_node_release_version = "v1.1.19"
+platform_release_version = "v1.1.19"
+upcoming_platform_release_version = "v1.1.20" # to use when adding 'edit on github' plugin
+mix_node_release_version = "v1.1.20"
 #
 [preprocessor.last-changed]
 command = "mdbook-last-changed"