diff --git a/docs/Project.toml b/docs/Project.toml
index fa58be0a3..269233053 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -4,4 +4,4 @@ DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 
 [compat]
-Documenter = "0.27"
+Documenter = "1"
diff --git a/docs/make.jl b/docs/make.jl
index 6a82529f4..5656f41dd 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -5,6 +5,7 @@ DocMeta.setdocmeta!(DataStructures, :DocTestSetup, :(using DataStructures); recu
 
 makedocs(
     sitename = "DataStructures.jl",
+    warnonly = true,  # FIXME: address all warnings and resolve them
     pages = [
         "index.md",
         "deque.md",