diff --git a/book.toml b/book.toml
index fee4a7f8..46d04c70 100644
--- a/book.toml
+++ b/book.toml
@@ -18,12 +18,12 @@ cname = "www.scala-sbt.org"
 [preprocessor.variables]
 
 [preprocessor.variables.variables]
-sbt_version = "2.0.0-RC5"
+sbt_version = "2.0.0-RC6"
 sbt_runner_version = "1.11.6"
-scala3_example_version = "3.7.2"
-scala3_metabuild_version = "3.7.2"
-scala2_13_example_version = "2.13.16"
-example_munit_version = "1.1.1"
+scala3_example_version = "3.7.3"
+scala3_metabuild_version = "3.7.3"
+scala2_13_example_version = "2.13.17"
+example_munit_version = "1.2.0"
 curly_open = "{{"
 curly_close = "}}"
 global_base="$HOME/.sbt/2"