diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0765492e1..219a0d6ab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
             arch: x64
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
diff --git a/.github/workflows/doc_cleanup.yml b/.github/workflows/doc_cleanup.yml
index 22d90435e..94b9f70ad 100644
--- a/.github/workflows/doc_cleanup.yml
+++ b/.github/workflows/doc_cleanup.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes
@@ -23,4 +23,4 @@ jobs:
               git push --force origin gh-pages-new:gh-pages
             fi
         env:
-            PRNUM: ${{ github.event.number }}
\ No newline at end of file
+            PRNUM: ${{ github.event.number }}
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 09465d588..8e6abd30b 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -11,7 +11,7 @@ jobs:
     env:
       GKSwstype: nul
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'
diff --git a/.github/workflows/format_check.yml b/.github/workflows/format_check.yml
index c84860076..b1eee1212 100644
--- a/.github/workflows/format_check.yml
+++ b/.github/workflows/format_check.yml
@@ -10,10 +10,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'
-      - uses: actions/checkout@v1
       - name: Format check
         shell: julia --color=yes {0}
         run: |
diff --git a/docs/src/guides/debug_a_model.md b/docs/src/guides/debug_a_model.md
index 21bb63f42..11cd7801a 100644
--- a/docs/src/guides/debug_a_model.md
+++ b/docs/src/guides/debug_a_model.md
@@ -56,14 +56,14 @@ julia> SDDP.write_subproblem_to_file(model[1], "subproblem.lp")
 
 julia> read("subproblem.lp") |> String |> print
 minimize
-obj: 1.1 x_out + 1 x2
+obj: 1.1 x_out + 1 x4
 subject to
-balance: -1 y + 1 x_in - 1 x_out = 0
+balance: 1 x_in - 1 x_out - 1 y = 0
 Bounds
-y = 1.1
-x2 >= 0
 x_in free
 x_out free
+y = 1.1
+x4 >= 0
 End
 ```
 
@@ -80,14 +80,14 @@ julia> SDDP.write_subproblem_to_file(model[1], "subproblem.lp")
 
 julia> read("subproblem.lp") |> String |> print
 minimize
-obj: 3.3 x_out + 1 x2
+obj: 3.3 x_out + 1 x4
 subject to
-balance: -1 y + 1 x_in - 1 x_out = 0
+balance: 1 x_in - 1 x_out - 1 y = 0
 Bounds
-y = 3.3
-x2 >= 0
 x_in free
 x_out free
+y = 3.3
+x4 >= 0
 End
 
 julia> rm("subproblem.lp")  # Clean up.