diff --git a/package.json b/package.json
index c30ddb0..d33f7e3 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "@types/n3": "^1.0.0",
     "@types/readable-stream": "^4.0.0",
     "@types/sparqljs": "^3.0.0",
-    "is-stream": "^2.0.0",
+    "is-stream": "^4.0.0",
     "n3": "^1.0.0",
     "rdf-string": "^2.0.0",
     "readable-from-web": "^1.0.0",
diff --git a/yarn.lock b/yarn.lock
index 7029403..35af3c4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3971,6 +3971,11 @@ is-stream@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-2.0.1.tgz#fac1e3d53b97ad5a9d0ae9cef2389f5810a5c077"
   integrity sha512-hFoiJiTl63nn+kstHGBtewWSKnQLpyb155KHheA1l39uvtO9nWIop1p3udqPcUd/xbF1VLMO4n7OI6p7RbngDg==
 
+is-stream@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-4.0.1.tgz#375cf891e16d2e4baec250b85926cffc14720d9b"
+  integrity sha512-Dnz92NInDqYckGEUJv689RbRiTSEHCQ7wOVeALbkOz999YpqT46yMRIGtSNl2iCL1waAZSx40+h59NV/EwzV/A==
+
 is-string@^1.0.7, is-string@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.1.1.tgz#92ea3f3d5c5b6e039ca8677e5ac8d07ea773cbb9"