diff --git a/Makefile b/Makefile
index 18a99a59f..07426fe5e 100644
--- a/Makefile
+++ b/Makefile
@@ -85,7 +85,7 @@ testserver: $(THREEJS)
 ChangeLog: rmChangeLog
 	git log --pretty --numstat --summary | $(GIT2CL) >$@
 
-node_modules/\@mathicsorg/mathics-threejs-backend/package.json:
+node_modules/\@mathicsorg/mathics-threejs-backend/package.json node_modules/@mathicsorg/mathics-threejs-backend/package.json:
 	npm install @mathicsorg/mathics-threejs-backend --loglevel=error
 
 #: Install mathics-threejs-backend with npm and copy the necessary files to the right place.
diff --git a/package.json b/package.json
index 2766daaf9..2d848094d 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
   "dependencies": {
-    "@mathicsorg/mathics-threejs-backend": "^0.5.0"
+    "@mathicsorg/mathics-threejs-backend": ">=0.5.0"
   }
 }
diff --git a/setup.py b/setup.py
index b9420fda9..b90486ce6 100644
--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@ def read(*rnames):
 INSTALL_REQUIRES += [
     "Mathics-Scanner >= 1.2.2,<1.3.0",
     # "Mathics3 @ http://github.com/mathics/Mathics/archive/master.zip",
-    "Mathics3 >= 3.1.0",
+    "Mathics3 >= 4.0.0",
     "django >= 3.2",
     "networkx >= 2.5",  # Used in format, should disappear though
     "requests",