diff --git a/vignettes/fims-demo.Rmd b/vignettes/fims-demo.Rmd
index dd35d7b8..043e3804 100644
--- a/vignettes/fims-demo.Rmd
+++ b/vignettes/fims-demo.Rmd
@@ -63,8 +63,8 @@ Here, we define specifications for fleets, recruitment, growth, and maturity mod
 fleet1 <- survey1 <- list(
   selectivity = list(form = "LogisticSelectivity"),
   data_distribution = c(
-    Index = "TMBDlnormDistribution",
-    AgeComp = "TMBDmultinomDistribution"
+    Index = "DlnormDistribution",
+    AgeComp = "DmultinomDistribution"
   )
 )
 
@@ -74,7 +74,7 @@ default_parameters <- fims_frame |>
     fleets = list(fleet1 = fleet1, survey1 = survey1),
     recruitment = list(
       form = "BevertonHoltRecruitment",
-      process_distribution = c(log_devs = "TMBDnormDistribution")
+      process_distribution = c(log_devs = "DnormDistribution")
     ),
     growth = list(form = "EWAAgrowth"),
     maturity = list(form = "LogisticMaturity")