diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d186abb9..996fc663 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -71,9 +71,8 @@ jobs:
           # smoketests for different toolchains
           - {toolchain: stable, os: windows-latest, experimental: false, flags: ""}
           - {toolchain: stable, os: macos-latest, experimental: false, flags: ""}
-          # data structure size changes - wait for beta to become stable and uncomment
-          #- {toolchain: beta, os: ubuntu-latest, experimental: false, flags: ""}
-          #- {toolchain: nightly, os: ubuntu-latest, experimental: true, flags: ""}
+          - {toolchain: beta, os: ubuntu-latest, experimental: false, flags: ""}
+          - {toolchain: nightly, os: ubuntu-latest, experimental: true, flags: ""}
       fail-fast: false
     steps:
     - name: Checkout
@@ -96,8 +95,6 @@ jobs:
     continue-on-error: ${{matrix.experimental}}
     strategy:
       matrix:
-        flags:
-          - ""
         include:
           - {os: ubuntu-latest, flags: "--profile unix", experimental: false}
           - {os: windows-latest, flags: "--profile windows", experimental: true}
diff --git a/Cargo.toml b/Cargo.toml
index 3999b7de..4db19d3b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,8 @@ categories = ["no-std", "embedded", "wasm", "parser-implementations"]
 
 [dependencies]
 smallvec = { version = "1.7", default-features = false, features = ["union", "const_new", "const_generics"] }
-ahash = { version = "0.8", default-features = false, features = ["compile-time-rng"] }
+# 0.8.1 pulls in `getrandom/js` which breaks no-std
+ahash = { version = "=0.8.0", default-features = false, features = ["compile-time-rng"] }
 num-traits = { version = "0.2", default-features = false }
 bitflags = { version = "1", default-features = false }
 smartstring = { version = "1", default-features = false }
diff --git a/src/config/hashing.rs b/src/config/hashing.rs
index 58374d21..c11f7626 100644
--- a/src/config/hashing.rs
+++ b/src/config/hashing.rs
@@ -20,6 +20,7 @@
 // [236,800,954,213], haha funny yume nikki reference epic uboachan face numberworld nexus moment 100
 
 use crate::config::hashing_env;
+use core::panic::{RefUnwindSafe, UnwindSafe};
 #[cfg(feature = "no_std")]
 use std::prelude::v1::*;
 use std::{
@@ -27,7 +28,6 @@ use std::{
     marker::PhantomData,
     mem,
     mem::MaybeUninit,
-    panic::{RefUnwindSafe, UnwindSafe},
     sync::atomic::{AtomicBool, AtomicUsize, Ordering},
 };