diff --git a/DESCRIPTION b/DESCRIPTION
index cdc19f97..68ecc894 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -44,7 +44,7 @@ Imports:
     cli,
     desc,
     dplyr,
-    glue,
+    glue (>= 1.7.0),
     jsonlite,
     pkgbuild (>= 1.4.0),
     processx,
diff --git a/R/toml_serialization.R b/R/toml_serialization.R
index e1218748..28af737e 100644
--- a/R/toml_serialization.R
+++ b/R/toml_serialization.R
@@ -66,6 +66,10 @@ to_toml <- function(...,
       .format_dbl = .format_dbl
     )
     body <- glue_collapse(body, "\n")
+    if (!nzchar(body)) {
+      body <- NULL
+    }
+
     # The values can be (1) header and body, (2) header only, or (3) body only.
     # In the case of (2) and (3) the other element is of length 0, so we need to
     # remove them by `c()` first, and then concatenate by "\n" if both exists
diff --git a/tests/testthat/_snaps/use_cran_defaults.md b/tests/testthat/_snaps/use_cran_defaults.md
index aa9b6355..84e5994e 100644
--- a/tests/testthat/_snaps/use_cran_defaults.md
+++ b/tests/testthat/_snaps/use_cran_defaults.md
@@ -186,13 +186,13 @@
       # A tibble: 9 x 2
         crate          version
         <chr>          <chr>  
-      1 extendr-api    0.6.0  
-      2 extendr-macros 0.6.0  
-      3 libR-sys       0.6.0  
-      4 once_cell      1.19.0 
-      5 paste          1.0.14 
-      6 proc-macro2    1.0.70 
-      7 quote          1.0.33 
-      8 syn            2.0.42 
-      9 unicode-ident  1.0.12 
+      1 extendr-api    *.*.*  
+      2 extendr-macros *.*.*  
+      3 libR-sys       *.*.*  
+      4 once_cell      *.*.* 
+      5 paste          *.*.* 
+      6 proc-macro2    *.*.* 
+      7 quote          *.*.* 
+      8 syn            *.*.* 
+      9 unicode-ident  *.*.* 
 
diff --git a/tests/testthat/test-use_cran_defaults.R b/tests/testthat/test-use_cran_defaults.R
index 83ee5ad3..08185f02 100644
--- a/tests/testthat/test-use_cran_defaults.R
+++ b/tests/testthat/test-use_cran_defaults.R
@@ -25,6 +25,14 @@ test_that("use_cran_defaults() quiet if quiet=TRUE", {
 
 
 test_that("vendor_pkgs() vendors dependencies", {
+  mask_version_strings <- function(snapshot_lines) {
+    stringi::stri_replace_all_regex(
+      snapshot_lines,
+      "\\d+\\.\\d+\\.\\d+",
+      "*.*.*"
+    )
+  }
+
   skip_if_not_installed("usethis")
 
   path <- local_package("testpkg")
@@ -35,6 +43,6 @@ test_that("vendor_pkgs() vendors dependencies", {
 
   package_versions <- vendor_pkgs(path, quiet = TRUE)
   expect_snapshot(cat_file("src", "rust", "vendor-config.toml"))
-  expect_snapshot(package_versions)
+  expect_snapshot(package_versions, transform = mask_version_strings)
   expect_true(file.exists(file.path("src", "rust", "vendor.tar.xz")))
 })