diff --git a/package.json b/package.json
index 6d058c7..5d113e6 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   ],
   "dependencies": {
     "@types/node": "^13.1.6",
-    "sparqlalgebrajs": "^2.4.0"
+    "sparqlalgebrajs": "^4.0.0"
   },
   "peerDependencies": {
     "@comunica/bus-query-operation": "^1.17.0",
diff --git a/yarn.lock b/yarn.lock
index e7873d0..27f129a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3443,14 +3443,6 @@ multimap@^1.1.0:
   resolved "https://registry.yarnpkg.com/multimap/-/multimap-1.1.0.tgz#5263febc085a1791c33b59bb3afc6a76a2a10ca8"
   integrity sha512-0ZIR9PasPxGXmRsEF8jsDzndzHDj7tIav+JUmvIFB/WHswliFnquxECT/De7GR4yg99ky/NlRKJT82G1y271bw==
 
-n3@^1.6.0:
-  version "1.6.3"
-  resolved "https://registry.yarnpkg.com/n3/-/n3-1.6.3.tgz#373de2ebfbce5c51edbd05f8cd36e76482107207"
-  integrity sha512-dN+8pLw2h1H1WQTW9VR3T16tHPDYdQP+YKXzbcpBCMCb9ZkksUyoVRRdtFGl3vosdET+NIB5eiIgth+4Vit6Yw==
-  dependencies:
-    queue-microtask "^1.1.2"
-    readable-stream "^3.6.0"
-
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -3839,11 +3831,6 @@ qs@~6.5.2:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
-queue-microtask@^1.1.2:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/queue-microtask/-/queue-microtask-1.1.4.tgz#40841ace4356b48b35b5ea61a2e1fe0a23c59ce1"
-  integrity sha512-eY/4Obve9cE5FK8YvC1cJsm5cr7XvAurul8UtBDJ2PR1p5NmAwHtvAt5ftcLtwYRCUKNhxCneZZlxmUDFoSeKA==
-
 quick-lru@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
@@ -3994,7 +3981,7 @@ read-pkg@^5.2.0:
     parse-json "^5.0.0"
     type-fest "^0.6.0"
 
-"readable-stream@2 || 3", readable-stream@^3.6.0:
+"readable-stream@2 || 3":
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@@ -4288,17 +4275,6 @@ source-map@^0.6.0, source-map@^0.6.1:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
-sparqlalgebrajs@^2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/sparqlalgebrajs/-/sparqlalgebrajs-2.4.0.tgz#c223a8185bad1a7e7ffc46eaff859fc55c1ff49c"
-  integrity sha512-6glKn1uWBsdPuQ4D+4r5m8mgWZoMfiNgip4uyblULTmgISqcbsQzrlrIhWQoZSX95QLLlWlYJufhelQAIRAWKg==
-  dependencies:
-    fast-deep-equal "^3.1.1"
-    minimist "^1.2.5"
-    rdf-data-factory "^1.0.0"
-    rdf-string "^1.5.0"
-    sparqljs "^3.1.1"
-
 sparqlalgebrajs@^4.0.0:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/sparqlalgebrajs/-/sparqlalgebrajs-4.0.2.tgz#f8a2266636feac733e26bf06a7a2b7416c8b0c57"
@@ -4313,13 +4289,6 @@ sparqlalgebrajs@^4.0.0:
     rdf-string "^1.6.0"
     sparqljs "^3.5.1"
 
-sparqljs@^3.1.1:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/sparqljs/-/sparqljs-3.1.2.tgz#157c33ee26fcc137edbd1f2ce805fbc94be1f71d"
-  integrity sha512-HceS9IUt/ojG75FIv6+UwaYX+wYMH0g+pfZwbvHOSLwCESIQvB4yDGe02yLxfNKXpnXGiIpEaJr5NsYUjI/QWQ==
-  dependencies:
-    n3 "^1.6.0"
-
 sparqljs@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/sparqljs/-/sparqljs-3.5.1.tgz#631cd4b5bcc3d9ce23c5313b3a158eccf858e28b"