diff --git a/src/cambridge/cambridge.make b/src/cambridge/cambridge.make
index af874e6ea112700b5a3336dd7c847d5d106d7028..1a186aaa332ccf3e55bbbb51330c5c2101e68747 100644
--- a/src/cambridge/cambridge.make
+++ b/src/cambridge/cambridge.make
@@ -73,6 +73,7 @@ projects[scheduler] = "1.3"
 projects[search_api] = "1.14"
 projects[search_api_db] = "1.4"
 projects[select_or_other] = "2.20"
+projects[sharethis] = "2.10"
 projects[similarterms] = "2.3"
 projects[smart_trim][version] = "1.4"
 projects[smart_trim][patch][] = "http://drupal.org/files/issues/smart_trim_remove_punctuation_from_end_of_truncated_output-2169583-3.patch"