diff --git a/package.json b/package.json
index dc67342d8..641d38c55 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "js-slang",
-  "version": "1.0.74",
+  "version": "1.0.75",
   "license": "Apache-2.0",
   "description": "Javascript-based implementations of Source, written in Typescript",
   "keywords": [
diff --git a/src/alt-langs/scheme/scm-slang b/src/alt-langs/scheme/scm-slang
index 2823b8983..23d97f8c8 160000
--- a/src/alt-langs/scheme/scm-slang
+++ b/src/alt-langs/scheme/scm-slang
@@ -1 +1 @@
-Subproject commit 2823b89837caf08e39e1354917db04752b4dcd97
+Subproject commit 23d97f8c81bd0930570eaa26e8585cbaeb8e389c
diff --git a/src/py-slang b/src/py-slang
index d5f42ea50..9a3eceb6b 160000
--- a/src/py-slang
+++ b/src/py-slang
@@ -1 +1 @@
-Subproject commit d5f42ea50dd9b1c62f0ad580f17dda8609bc2520
+Subproject commit 9a3eceb6b03b077b6c187b068f80b74136aa5c53