diff --git a/book/_toc.yml b/book/_toc.yml
index 681274b..9b1b949 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -31,9 +31,7 @@ parts:
         - file: external/mechanics-BSc/book/support_internal_forces/model/supports
         - file: external/mechanics-BSc/book/support_internal_forces/model/hinges
         - file: external/mechanics-BSc/book/support_internal_forces/model/FBD
-      - file: external/mechanics-BSc/book/support_internal_forces/transforming_forces/intro
-        sections:
-        - file: external/mechanics-BSc/book/support_internal_forces/transforming_forces/Resolution_of_forces
+      - file: external/mechanics-BSc/book/support_internal_forces/transforming_forces/Resolution_of_forces
       - file: external/mechanics-BSc/book/support_internal_forces/equilibrium/intro
         sections:
         - file: external/mechanics-BSc/book/support_internal_forces/equilibrium/particle
diff --git a/book/external/mechanics-BSc b/book/external/mechanics-BSc
index 37a3d57..d93a730 160000
--- a/book/external/mechanics-BSc
+++ b/book/external/mechanics-BSc
@@ -1 +1 @@
-Subproject commit 37a3d578a7613190132bc54d3d31aa6a6e988e1b
+Subproject commit d93a730e72201f50aa1fc5bc72a38a5372452292