diff --git a/themes/hugo-prose b/themes/hugo-prose
deleted file mode 160000
index 7136dce..0000000
--- a/themes/hugo-prose
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7136dcef0cb8baea33dff337a48fe2da1da86bb0
diff --git a/themes/hugo-tufte b/themes/hugo-tufte
index 23b8548..3be1680 160000
--- a/themes/hugo-tufte
+++ b/themes/hugo-tufte
@@ -1 +1 @@
-Subproject commit 23b85481b684cbdab4b23a39d78fa37c8c35398e
+Subproject commit 3be1680484e6687afd0bffd41f2dd810babfe3ad
diff --git a/themes/slick b/themes/slick
deleted file mode 160000
index 2684cd3..0000000
--- a/themes/slick
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 2684cd3bb0c6679bf24a720176633cb1fe31c419