diff --git a/R/label-currency.R b/R/label-currency.R
index d141670d..56979a2f 100644
--- a/R/label-currency.R
+++ b/R/label-currency.R
@@ -166,8 +166,7 @@ dollar <- function(x, accuracy = NULL, scale = 1, prefix = "$",
   }
 
   if (lifecycle::is_present(negative_parens)) {
-    lifecycle::deprecate_warn("1.2.0", "dollar(negative_parens)", "dollar(style_negative)")
-    style_negative <- if (negative_parens) "parens" else "minus"
+    lifecycle::deprecate_stop("1.2.0", "dollar(negative_parens)", "dollar(style_negative)")
   }
 
   number(
diff --git a/R/label-number-si.R b/R/label-number-si.R
index 087b5829..c8e565cc 100644
--- a/R/label-number-si.R
+++ b/R/label-number-si.R
@@ -29,19 +29,11 @@
 #' # If you want the existing behavior, use cut_short_scale()
 #' demo_continuous(c(1, 1e9), labels = label_number(scale_cut = cut_short_scale()))
 label_number_si <- function(unit = "", accuracy = NULL, scale = 1, suffix = "", ...) {
-  lifecycle::deprecate_warn(
+  lifecycle::deprecate_stop(
     when = "1.2.0",
     what = "label_number_si()",
     with = "label_number(scale_cut)"
   )
-
-  label_number(
-    suffix = suffix,
-    scale_cut = cut_bad_si(unit),
-    accuracy = accuracy,
-    scale = scale,
-    ...
-  )
 }
 
 cut_bad_si <- function(unit) {
diff --git a/R/label-number.R b/R/label-number.R
index dadba4c7..94b45a13 100644
--- a/R/label-number.R
+++ b/R/label-number.R
@@ -150,7 +150,7 @@ label_comma <- function(accuracy = NULL, scale = 1, prefix = "",
                         suffix = "", big.mark = ",", decimal.mark = ".",
                         trim = TRUE, digits, ...) {
   if (!missing(digits)) {
-    lifecycle::deprecate_warn(
+    lifecycle::deprecate_stop(
       when = "1.0.0",
       what = "label_comma(digits)",
       with = "label_comma(accuracy)"
@@ -184,7 +184,7 @@ comma <- function(x, accuracy = NULL, scale = 1, prefix = "",
                   suffix = "", big.mark = ",", decimal.mark = ".",
                   trim = TRUE, digits, ...) {
   if (!missing(digits)) {
-    lifecycle::deprecate_warn(
+    lifecycle::deprecate_stop(
       when = "1.0.0",
       what = "comma(digits)",
       with = "comma(accuracy)"
diff --git a/R/pal-gradient.R b/R/pal-gradient.R
index ae4e23d5..efaf753c 100644
--- a/R/pal-gradient.R
+++ b/R/pal-gradient.R
@@ -8,10 +8,9 @@
 #' @param space colour space in which to calculate gradient. Must be "Lab" -
 #'   other values are deprecated.
 #' @export
-
 pal_gradient_n <- function(colours, values = NULL, space = "Lab") {
   if (!identical(space, "Lab")) {
-    lifecycle::deprecate_warn("0.3.0", "pal_gradient_n(space = 'only supports be \"Lab\"')")
+    lifecycle::deprecate_stop("0.3.0", "pal_gradient_n(space = 'only supports be \"Lab\"')")
   }
   ramp <- colour_ramp(colours)
   force(values)
diff --git a/tests/testthat/test-label-currency.R b/tests/testthat/test-label-currency.R
index cdb23d7c..b8dabfea 100644
--- a/tests/testthat/test-label-currency.R
+++ b/tests/testthat/test-label-currency.R
@@ -3,10 +3,7 @@ test_that("negative comes before prefix", {
 })
 
 test_that("negative_parens is deprecated", {
-  lifecycle::expect_deprecated({
-    out <- label_dollar(negative_parens = TRUE)(-1)
-  })
-  expect_equal(out, "($1)")
+  lifecycle::expect_defunct(label_dollar(negative_parens = TRUE)(1))
 })
 
 test_that("preserves NAs", {
diff --git a/tests/testthat/test-label-number-si.R b/tests/testthat/test-label-number-si.R
index ccce2043..4608862c 100644
--- a/tests/testthat/test-label-number-si.R
+++ b/tests/testthat/test-label-number-si.R
@@ -1,7 +1,5 @@
 test_that("label_number_si() is deprecated", {
-  lifecycle::expect_deprecated(lab <- label_number_si(""))
-  expect_equal(lab(c(0, 1e3, 1e6)), c("0", "1K", "1M"))
+  lifecycle::expect_defunct(label_number_si(""))
 
-  lifecycle::expect_deprecated(lab <- label_number_si("m"))
-  expect_equal(lab(c(0, 1e3, 1e6)), c("0 m", "1 Km", "1 Mm"))
+  lifecycle::expect_defunct(label_number_si("m"))
 })