diff --git a/data-raw/03-gtcars.R b/data-raw/03-gtcars.R
index b8f7ede283..fbf3e392af 100644
--- a/data-raw/03-gtcars.R
+++ b/data-raw/03-gtcars.R
@@ -1,3 +1,6 @@
 library(tidyverse)
 
 gtcars <- readr::read_csv(file = "data-raw/gtcars.csv")
+
+# Drop spec() attribute
+gtcars <- gtcars[]
diff --git a/data-raw/04-sp500.R b/data-raw/04-sp500.R
index 24b8a13752..76d10d1365 100644
--- a/data-raw/04-sp500.R
+++ b/data-raw/04-sp500.R
@@ -1,3 +1,6 @@
 library(tidyverse)
 
 sp500 <- readr::read_csv(file = "data-raw/sp500.csv")
+
+# Drop spec attribute
+sp500 <- sp500[]
diff --git a/data-raw/08-peeps.R b/data-raw/08-peeps.R
index 25cedfb70c..c390640aa6 100644
--- a/data-raw/08-peeps.R
+++ b/data-raw/08-peeps.R
@@ -21,3 +21,6 @@ peeps <-
         weight_kg = col_double()
       )
   )
+
+# Drop spec attribute
+peeps <- peeps[]
diff --git a/data-raw/09-films.R b/data-raw/09-films.R
index 53d17408d6..f1263ba4a9 100644
--- a/data-raw/09-films.R
+++ b/data-raw/09-films.R
@@ -15,3 +15,6 @@ films <-
         imdb_url = col_character()
       )
   )
+
+# Drop spec() attribute
+films <- films[]
diff --git a/data-raw/15-photolysis.R b/data-raw/15-photolysis.R
index 669bd62fbf..c03290e807 100644
--- a/data-raw/15-photolysis.R
+++ b/data-raw/15-photolysis.R
@@ -18,3 +18,5 @@ photolysis <-
       )
   )
 
+# Drop spec attribute
+photolysis <- photolysis[]