diff --git a/tools/update-plankton b/tools/update-plankton
index 1cc35e7..d85e70a 100755
--- a/tools/update-plankton
+++ b/tools/update-plankton
@@ -2,7 +2,7 @@
 
 ## consts
 
-dir=lib/plankton
+dir=$(pwd)/lib/plankton
 
 modules=""
 modules="${modules} base"
@@ -17,6 +17,14 @@ modules="${modules} log"
 
 ## exec
 
+mkdir -p ${dir}
+mkdir /tmp/sandbox -p
+cd /tmp/sandbox
+ptk fetch node ${modules}
+schwamm --include=/tmp/sandbox/plankton.swm.json --output=dump:logic-decl > ${dir}/plankton.d.ts
+schwamm --include=/tmp/sandbox/plankton.swm.json --output=dump:logic-impl > ${dir}/plankton.js
+exit
+
 mkdir -p ${dir}
 cd ${dir}
 ptk bundle node ${modules}