diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 459b3354..cb5be580 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -20,6 +20,9 @@ jobs:
           # Minimum supported version
           - version: 'min'
             os: ubuntu-latest
+          # 1.11
+          - version: '1.11'
+            os: ubuntu-latest
           # Windows
           - version: '1'
             os: windows-latest
diff --git a/.github/workflows/JuliaPre.yml b/.github/workflows/JuliaPre.yml
index 6c005bfd..e3bf4a97 100644
--- a/.github/workflows/JuliaPre.yml
+++ b/.github/workflows/JuliaPre.yml
@@ -1,10 +1,13 @@
 name: JuliaPre
 
 on:
-  push:
-    branches:
-      - main
-  pull_request:
+  workflow_dispatch:
+  # JuliaPre is currently disabled because 'pre' resolves to 1.12. Re-enable
+  # when 1.13 prerelease is available.
+  # push:
+  #   branches:
+  #     - main
+  # pull_request:
 
 # needed to allow julia-actions/cache to delete old caches that it has created
 permissions:
diff --git a/HISTORY.md b/HISTORY.md
index c7b61af0..026c849d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,7 @@
+## 0.13.3
+
+Bumped compatibility for JSON.jl to include v1.
+
 ## 0.13.2
 
 Implemented `varname_leaves` for `LinearAlgebra.Cholesky`.
diff --git a/Project.toml b/Project.toml
index c1940ca2..471a9b3b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -3,7 +3,7 @@ uuid = "7a57a42e-76ec-4ea3-a279-07e840d6d9cf"
 keywords = ["probablistic programming"]
 license = "MIT"
 desc = "Common interfaces for probabilistic programming"
-version = "0.13.2"
+version = "0.13.3"
 
 [deps]
 AbstractMCMC = "80f14c24-f653-4e6a-9b94-39d6b0f70001"
@@ -25,7 +25,7 @@ AbstractMCMC = "2, 3, 4, 5"
 Accessors = "0.1"
 DensityInterface = "0.4"
 Distributions = "0.25"
-JSON = "0.19 - 0.21"
+JSON = "0.19 - 0.21, 1"
 LinearAlgebra = "<0.0.1, 1.10"
 Random = "1.6"
 StatsBase = "0.32, 0.33, 0.34"
diff --git a/src/varname/serialize.jl b/src/varname/serialize.jl
index e27da781..7feb4896 100644
--- a/src/varname/serialize.jl
+++ b/src/varname/serialize.jl
@@ -171,4 +171,5 @@ varname_to_string(vn::VarName) = JSON.json(varname_to_dict(vn))
 Convert a string representation of a `VarName` back to a `VarName`. The string
 should have been generated by `varname_to_string`.
 """
-string_to_varname(str::AbstractString) = dict_to_varname(JSON.parse(str))
+string_to_varname(str::AbstractString) =
+    dict_to_varname(JSON.parse(str; dicttype=Dict{String,Any}))