diff --git a/src/plugins/ci.jl b/src/plugins/ci.jl
index eccb516..3bbf4fb 100644
--- a/src/plugins/ci.jl
+++ b/src/plugins/ci.jl
@@ -7,7 +7,7 @@ Strings are left in their original form.
 format_version(v::VersionNumber) = "$(v.major).$(v.minor)"
 format_version(v::AbstractString) = string(v)
 
-const ALLOWED_FAILURES = ["1.3", "nightly"]  # TODO: Update this list with new RCs.
+const ALLOWED_FAILURES = ["nightly"]  # TODO: Update this list with new RCs.
 const DEFAULT_CI_VERSIONS = map(format_version, [default_version(), VERSION, "nightly"])
 const DEFAULT_CI_VERSIONS_NO_NIGHTLY = map(format_version, [default_version(), VERSION])
 const EXTRA_VERSIONS_DOC = "- `extra_versions::Vector`: Extra Julia versions to test, as strings or `VersionNumber`s."
diff --git a/test/fixtures/AllPlugins/.appveyor.yml b/test/fixtures/AllPlugins/.appveyor.yml
index 9eee8d1..d7f6695 100644
--- a/test/fixtures/AllPlugins/.appveyor.yml
+++ b/test/fixtures/AllPlugins/.appveyor.yml
@@ -2,7 +2,7 @@
 environment:
   matrix:
     - julia_version: 1.0
-    - julia_version: 1.2
+    - julia_version: 1.3
     - julia_version: nightly
 platform:
   - x64
diff --git a/test/fixtures/AllPlugins/.cirrus.yml b/test/fixtures/AllPlugins/.cirrus.yml
index a8874cb..9090e1d 100644
--- a/test/fixtures/AllPlugins/.cirrus.yml
+++ b/test/fixtures/AllPlugins/.cirrus.yml
@@ -4,7 +4,7 @@ task:
   name: FreeBSD
   env:
     JULIA_VERSION: 1.0
-    JULIA_VERSION: 1.2
+    JULIA_VERSION: 1.3
     JULIA_VERSION: nightly
   install_script:
     - sh -c "$(fetch https://raw.githubusercontent.com/ararslan/CirrusCI.jl/master/bin/install.sh -o -)"
diff --git a/test/fixtures/AllPlugins/.drone.star b/test/fixtures/AllPlugins/.drone.star
index cdfb36e..2d15920 100644
--- a/test/fixtures/AllPlugins/.drone.star
+++ b/test/fixtures/AllPlugins/.drone.star
@@ -1,7 +1,7 @@
 def main(ctx):
   pipelines = []
   for arch in ["amd64"]:
-    for julia in ["1.0", "1.2"]:
+    for julia in ["1.0", "1.3"]:
       pipelines.append(pipeline(arch, julia))
   return pipelines
 
diff --git a/test/fixtures/AllPlugins/.github/workflows/ci.yml b/test/fixtures/AllPlugins/.github/workflows/ci.yml
index 2710c61..9962b12 100644
--- a/test/fixtures/AllPlugins/.github/workflows/ci.yml
+++ b/test/fixtures/AllPlugins/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         version:
           - '1.0'
-          - '1.2'
+          - '1.3'
         os:
           - ubuntu-latest
           - macOS-latest
diff --git a/test/fixtures/AllPlugins/.gitlab-ci.yml b/test/fixtures/AllPlugins/.gitlab-ci.yml
index 44d9d34..62e0687 100644
--- a/test/fixtures/AllPlugins/.gitlab-ci.yml
+++ b/test/fixtures/AllPlugins/.gitlab-ci.yml
@@ -19,7 +19,7 @@ Julia 1.0:
   image: julia:1.0
   <<: *script
   <<: *coverage
-Julia 1.2:
-  image: julia:1.2
+Julia 1.3:
+  image: julia:1.3
   <<: *script
   <<: *coverage
diff --git a/test/fixtures/AllPlugins/.travis.yml b/test/fixtures/AllPlugins/.travis.yml
index 9315112..3757a31 100644
--- a/test/fixtures/AllPlugins/.travis.yml
+++ b/test/fixtures/AllPlugins/.travis.yml
@@ -4,7 +4,7 @@ notifications:
   email: false
 julia:
   - 1.0
-  - 1.2
+  - 1.3
   - nightly
 os:
   - linux
diff --git a/test/fixtures/DocumenterGitHubActions/.github/workflows/ci.yml b/test/fixtures/DocumenterGitHubActions/.github/workflows/ci.yml
index 74a25a2..77dcdb7 100644
--- a/test/fixtures/DocumenterGitHubActions/.github/workflows/ci.yml
+++ b/test/fixtures/DocumenterGitHubActions/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         version:
           - '1.0'
-          - '1.2'
+          - '1.3'
         os:
           - ubuntu-latest
           - macOS-latest
diff --git a/test/fixtures/DocumenterTravis/.travis.yml b/test/fixtures/DocumenterTravis/.travis.yml
index 91da145..aa3f7d7 100644
--- a/test/fixtures/DocumenterTravis/.travis.yml
+++ b/test/fixtures/DocumenterTravis/.travis.yml
@@ -4,7 +4,7 @@ notifications:
   email: false
 julia:
   - 1.0
-  - 1.2
+  - 1.3
   - nightly
 os:
   - linux
diff --git a/test/fixtures/WackyOptions/.appveyor.yml b/test/fixtures/WackyOptions/.appveyor.yml
index 5f56bb5..236d6d9 100644
--- a/test/fixtures/WackyOptions/.appveyor.yml
+++ b/test/fixtures/WackyOptions/.appveyor.yml
@@ -1,14 +1,11 @@
 # Documentation: https://github.com/JuliaCI/Appveyor.jl
 environment:
   matrix:
+    - julia_version: 1.1
     - julia_version: 1.2
-    - julia_version: 1.3
 platform:
   - x64
   - x86
-matrix:
-  allow_failures:
-    - julia_version: 1.3
 branches:
   only:
     - master
diff --git a/test/fixtures/WackyOptions/.github/workflows/ci.yml b/test/fixtures/WackyOptions/.github/workflows/ci.yml
index ff776ce..b164bfc 100644
--- a/test/fixtures/WackyOptions/.github/workflows/ci.yml
+++ b/test/fixtures/WackyOptions/.github/workflows/ci.yml
@@ -11,6 +11,7 @@ jobs:
         version:
           - '1.0'
           - '1.2'
+          - '1.3'
         os:
           - macOS-latest
           - windows-latest
diff --git a/test/runtests.jl b/test/runtests.jl
index f2803db..b4835d4 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -48,9 +48,9 @@ mktempdir() do dir
                 include("git.jl")
 
                 # Quite a bit of output depends on the Julia version,
-                # and the test fixtures are made with Julia 1.2.
+                # and the test fixtures are made with Julia 1.3.
                 # TODO: Keep this on the latest stable Julia version.
-                if VERSION.major == 1 && VERSION.minor == 2
+                if VERSION.major == 1 && VERSION.minor == 3
                     include("reference.jl")
                 else
                     @info "Skipping reference tests" julia=VERSION