diff --git a/package-lock.json b/package-lock.json
index a0722f9e06..e3d06a3f3a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1163,9 +1163,9 @@
       "optional": true
     },
     "binaryen": {
-      "version": "97.0.0-nightly.20201008",
-      "resolved": "https://registry.npmjs.org/binaryen/-/binaryen-97.0.0-nightly.20201008.tgz",
-      "integrity": "sha512-GWV30FOQqz+vBIZRbc7GSasLNhh8BNLKH+2u2j5BjqM0WOEqqaP5iSj0mq72We2aVYqpBajJPI/CORY6o2RBxA=="
+      "version": "98.0.0-nightly.20201019",
+      "resolved": "https://registry.npmjs.org/binaryen/-/binaryen-98.0.0-nightly.20201019.tgz",
+      "integrity": "sha512-/uUB96xnMNO7YLnGWs+QLaSnhuOlO3OeZzPzpyq+cZWbwLl3AMsFC691M6nie6wqd77kvEfg23YgHq1jL9DTWA=="
     },
     "bluebird": {
       "version": "3.7.2",
diff --git a/package.json b/package.json
index c64fb60edd..725a064f26 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "url": "https://github.com/AssemblyScript/assemblyscript/issues"
   },
   "dependencies": {
-    "binaryen": "97.0.0-nightly.20201008",
+    "binaryen": "98.0.0-nightly.20201019",
     "long": "^4.0.0",
     "source-map-support": "^0.5.19",
     "ts-node": "^6.2.0"
diff --git a/tests/compiler/std/math.optimized.wat b/tests/compiler/std/math.optimized.wat
index a4fdf778e8..afe6c212a1 100644
--- a/tests/compiler/std/math.optimized.wat
+++ b/tests/compiler/std/math.optimized.wat
@@ -185,15 +185,11 @@
    i64.const 63
    i64.shr_u
    i32.wrap_i64
-   i32.const 0
-   i32.ne
    local.get $1
    i64.reinterpret_f64
    i64.const 63
    i64.shr_u
    i32.wrap_i64
-   i32.const 0
-   i32.ne
    i32.eq
    if
     local.get $2
@@ -371,14 +367,10 @@
    i32.reinterpret_f32
    i32.const 31
    i32.shr_u
-   i32.const 0
-   i32.ne
    local.get $1
    i32.reinterpret_f32
    i32.const 31
    i32.shr_u
-   i32.const 0
-   i32.ne
    i32.eq
    if
     local.get $2
diff --git a/tests/compiler/std/string-casemapping.optimized.wat b/tests/compiler/std/string-casemapping.optimized.wat
index ed7987951f..2a3e6923b5 100644
--- a/tests/compiler/std/string-casemapping.optimized.wat
+++ b/tests/compiler/std/string-casemapping.optimized.wat
@@ -1863,11 +1863,9 @@
   end
   call $~lib/rt/tlsf/maybeInitialize
   local.get $8
-  i32.const 3
+  i32.const 6
   i32.mul
   i32.const 1
-  i32.shl
-  i32.const 1
   call $~lib/rt/tlsf/allocateBlock
   i32.const 16
   i32.add
@@ -2123,8 +2121,6 @@
      i32.sub
      i32.const 26
      i32.lt_u
-     i32.const 0
-     i32.ne
      i32.const 5
      i32.shl
      i32.const -1
@@ -2786,8 +2782,6 @@
      i32.sub
      i32.const 26
      i32.lt_u
-     i32.const 0
-     i32.ne
      i32.const 5
      i32.shl
      i32.or