diff --git a/DESCRIPTION b/DESCRIPTION
index c770eb9..054439e 100755
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -43,7 +43,7 @@ Imports:
   magrittr,
   Matrix,
   methods,
-  purrr,
+  purrr (>= 1.0.0),
   processx,
   readr,
   stringr,
diff --git a/NEWS.md b/NEWS.md
index aff7084..cf389aa 100755
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,7 @@
+# dynwrap 1.2.5
+
+* BUG FIX `convert_definition()`: Fix for purrr having deprecated `invoke` in favour of `exec` (PR #166).
+
 # dynwrap 1.2.4
 
 * Resubmission after babelwhale was removed from CRAN.
diff --git a/R/method_process_definition.R b/R/method_process_definition.R
index 14ec9ca..9c04afb 100755
--- a/R/method_process_definition.R
+++ b/R/method_process_definition.R
@@ -320,12 +320,12 @@ is_ti_method <- function(method) {
 #' @export
 convert_definition <- function(definition_raw) {
   definition(
-    method = purrr::invoke(def_method, definition_raw$method %||% list()),
-    wrapper = purrr::invoke(def_wrapper, definition_raw$wrapper %||% list()),
-    container = purrr::invoke(def_container, definition_raw$container %||% list()),
-    package = purrr::invoke(def_package, definition_raw$package %||% list()),
-    manuscript = purrr::invoke(def_manuscript, definition_raw$manuscript %||% list()),
-    parameters = dynparam::as_parameter_set(definition_raw$parameters %||% list())
+    method = purrr::exec(def_method, !!!definition_raw$method),
+    wrapper = purrr::exec(def_wrapper, !!!definition_raw$wrapper),
+    container = purrr::exec(def_container, !!!definition_raw$container),
+    package = purrr::exec(def_package, !!!definition_raw$package),
+    manuscript = purrr::exec(def_manuscript, !!!definition_raw$manuscript),
+    parameters = dynparam::as_parameter_set(definition_raw$parameters)
   )
 }
 
diff --git a/R/wrap_add_dimred.R b/R/wrap_add_dimred.R
index e3020ae..85690a0 100755
--- a/R/wrap_add_dimred.R
+++ b/R/wrap_add_dimred.R
@@ -58,8 +58,8 @@ add_dimred <- function(
   if (is.matrix(dimred) || is.data.frame(dimred)) {
     dimred <- process_dimred(dataset, dimred)
     assert_that(
-      rownames(dimred) %all_in% dataset$cell_id,
-      dataset$cell_id %all_in% rownames(dimred)
+      rownames(dimred) %all_in% dataset$cell_ids,
+      dataset$cell_ids %all_in% rownames(dimred)
     )
 
   } else {