diff --git a/package.json b/package.json
index 9df0928..671d38d 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,6 @@
   },
   "devDependencies": {
     "@as-pect/cli": "^4.0.0",
-    "assemblyscript": "^0.15.0"
+    "assemblyscript": "^0.17.9"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 6a34b54..ce39a76 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -65,12 +65,12 @@ ansi-styles@^4.1.0:
     "@types/color-name" "^1.1.1"
     color-convert "^2.0.1"
 
-assemblyscript@^0.15.0:
-  version "0.15.0"
-  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.15.0.tgz#cc349f6255c841f6e8b8026646a502839c0238d2"
-  integrity sha512-pP10bt+Vum8r5pybvMYVl+xaddhwPaUZiibztxD7l60rcqtoOWF5o5XSAMzDx/WykT7FNnAkKflp0JFywarFOw==
+assemblyscript@^0.17.9:
+  version "0.17.9"
+  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.17.9.tgz#b43bbf797b424a12f411c96f7f488549aab7f821"
+  integrity sha512-uy7c2+f0d2v8OJDrTJbyFPrNxtAwwzmw/1EcckSi75QnUlPqQhZhYPPSRpPIyWCfi94DRoRwsU389FszdrEZtw==
   dependencies:
-    binaryen "97.0.0-nightly.20201006"
+    binaryen "98.0.0-nightly.20201109"
     long "^4.0.0"
 
 balanced-match@^1.0.0:
@@ -78,10 +78,10 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
-binaryen@97.0.0-nightly.20201006:
-  version "97.0.0-nightly.20201006"
-  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-97.0.0-nightly.20201006.tgz#725d39c7445d10a04674c9f2978099c6fc882b48"
-  integrity sha512-/xZwg4pDUQYg8BIn1F6OypJGwADNTIEDm48O5KuSE250bPj1tGCvAinYmm2JAoiio7DovTkwb5I3w0G+CvG8Jg==
+binaryen@98.0.0-nightly.20201109:
+  version "98.0.0-nightly.20201109"
+  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-98.0.0-nightly.20201109.tgz#512bf6ca15c67bf7402144734a4836e63993aa05"
+  integrity sha512-iRarAqdH5lMWlMBzrDuJgLYJR2g4QXk93iYE2zpr6gEZkb/jCgDpPUXdhuN11Ge1zZ/6By4DwA1mmifcx7FWaw==
 
 brace-expansion@^1.1.7:
   version "1.1.11"