diff --git a/rust-version b/rust-version
index af66f0a4d9..1083529bf3 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-55e86c996809902e8bbad512cfb4d2c18be446d9
+c92036b45babceee1d8d31cac5536207a26369a5
diff --git a/src/shims/math.rs b/src/shims/math.rs
index 1da7fbbdac..479e129579 100644
--- a/src/shims/math.rs
+++ b/src/shims/math.rs
@@ -30,6 +30,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             | "acosf"
             | "asinf"
             | "atanf"
+            | "acoshf"
+            | "asinhf"
             | "log1pf"
             | "expm1f"
             | "tgammaf"
@@ -52,6 +54,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                         "acosf" => f_host.acos(),
                         "asinf" => f_host.asin(),
                         "atanf" => f_host.atan(),
+                        "acoshf" => f_host.acosh(),
+                        "asinhf" => f_host.asinh(),
                         "log1pf" => f_host.ln_1p(),
                         "expm1f" => f_host.exp_m1(),
                         "tgammaf" => f_host.gamma(),
@@ -113,6 +117,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             | "acos"
             | "asin"
             | "atan"
+            | "acosh"
+            | "asinh"
             | "log1p"
             | "expm1"
             | "tgamma"
@@ -135,6 +141,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                         "acos" => f_host.acos(),
                         "asin" => f_host.asin(),
                         "atan" => f_host.atan(),
+                        "acosh" => f_host.acosh(),
+                        "asinh" => f_host.asinh(),
                         "log1p" => f_host.ln_1p(),
                         "expm1" => f_host.exp_m1(),
                         "tgamma" => f_host.gamma(),
diff --git a/tests/pass/float.rs b/tests/pass/float.rs
index e5454905bb..601f1729a4 100644
--- a/tests/pass/float.rs
+++ b/tests/pass/float.rs
@@ -47,8 +47,9 @@ macro_rules! assert_approx_eq {
     }};
 
     ($a:expr, $b: expr) => {
-        // accept up to 8ULP (4ULP for host floats and 4ULP for miri artificial error).
-        assert_approx_eq!($a, $b, 8);
+        // Accept up to 12ULP (4ULP for miri artificial error and the rest for host floats).
+        // We saw failures on an i686-linux host with a limit of 8!
+        assert_approx_eq!($a, $b, 12);
     };
 }
 
@@ -1611,9 +1612,9 @@ fn test_non_determinism() {
             check_nondet(|| 1.0f32.sinh());
             check_nondet(|| 1.0f32.cosh());
             check_nondet(|| 1.0f32.tanh());
+            check_nondet(|| 1.0f32.asinh());
+            check_nondet(|| 2.0f32.acosh());
         }
-        check_nondet(|| 1.0f32.asinh());
-        check_nondet(|| 2.0f32.acosh());
         check_nondet(|| 0.5f32.atanh());
         check_nondet(|| 5.0f32.gamma());
         check_nondet(|| 5.0f32.ln_gamma());