diff --git a/R/bytes.R b/R/bytes.R
index 9e59dc2..9f2f18e 100644
--- a/R/bytes.R
+++ b/R/bytes.R
@@ -169,16 +169,18 @@ type_sum.bench_bytes <- function(x) {
 bench_bytes_trans <- function(base = 2) {
   if (is.null(base)) {
     return(
-      scales::trans_new("bch:byt", as.numeric, as_bench_bytes,
-        scales::pretty_breaks(), domain = c(1e-100, Inf)
+      scales::trans_new("bch:byt", transform = as.numeric,
+        inverse = as_bench_bytes, breaks = scales::pretty_breaks(),
+        domain = c(1e-100, Inf)
       )
     )
   }
   trans <- function(x) log(as.numeric(x), base)
   inv <- function(x) as_bench_bytes(base ^ as.numeric(x))
 
-  scales::trans_new(paste0("bch:byt-", format(base)), trans, inv,
-    scales::log_breaks(base = base), domain = c(1e-100, Inf))
+  scales::trans_new(paste0("bch:byt-", format(base)), transform = trans,
+    inverse = inv, breaks = scales::log_breaks(base = base),
+    domain = c(1e-100, Inf))
 }
 
 scale_type.bench_bytes <- function(x) "bench_bytes"
diff --git a/R/time.R b/R/time.R
index 9159edb..3a681e1 100644
--- a/R/time.R
+++ b/R/time.R
@@ -209,8 +209,9 @@ type_sum.bench_time <- function(x) {
 bench_time_trans <- function(base = 10) {
   if (is.null(base)) {
     return(
-      scales::trans_new("bch:tm", as.numeric, as_bench_time,
-        scales::pretty_breaks(), domain = c(1e-100, Inf)
+      scales::trans_new("bch:tm", transform = as.numeric,
+        inverse = as_bench_time, breaks = scales::pretty_breaks(),
+        domain = c(1e-100, Inf)
       )
     )
   }
@@ -218,8 +219,9 @@ bench_time_trans <- function(base = 10) {
   trans <- function(x) log(as.numeric(x), base)
   inv <- function(x) as_bench_time(base ^ as.numeric(x))
 
-  scales::trans_new(paste0("bch:tm-", format(base)), trans, inv,
-    scales::log_breaks(base = base), domain = c(1e-100, Inf))
+  scales::trans_new(paste0("bch:tm-", format(base)), transform = trans,
+    inverse = inv, breaks = scales::log_breaks(base = base),
+    domain = c(1e-100, Inf))
 }
 
 scale_type.bench_time <- function(x) "bench_time"