diff --git a/.cirrus.yml b/.cirrus.yml
index fbad099..5712191 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -4,7 +4,7 @@ task:
   name: FreeBSD
   env:
     matrix:
-      - JULIA_VERSION: 1.3
+      - JULIA_VERSION: 1.6
       - JULIA_VERSION: 1
       - JULIA_VERSION: nightly
   allow_failures: $JULIA_VERSION == 'nightly'
diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
index dd821e6..a26db5b 100644
--- a/.github/workflows/CompatHelper.yml
+++ b/.github/workflows/CompatHelper.yml
@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: julia-actions/setup-julia@latest
         with:
-          version: 1.3
+          version: 1.6
       - name: Pkg.add("CompatHelper")
         run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
       - name: CompatHelper.main()
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 930cda8..409e0d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['1.3', '1']
+        version: ['1.6', '1']
         os: [ubuntu-latest, macOS-latest, windows-latest]
         arch: [x64]
         allow_failure: [false]
diff --git a/Project.toml b/Project.toml
index 6c1d586..a03e194 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,7 @@ SolverCore = "ff4d7338-4cf1-434d-91df-b86cb86fb843"
 Ipopt = "0.5.0, 0.6, 0.7"
 NLPModels = "0.14, 0.15, 0.16, 0.17, 0.18"
 SolverCore = "0.1, 0.2"
-julia = "^1.3.0"
+julia = "^1.6"
 
 [extras]
 ADNLPModels = "54578032-b7ea-4c30-94aa-7cbd1cce6c9a"
diff --git a/docs/Project.toml b/docs/Project.toml
index 15546a1..cb356cf 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,4 +11,4 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 [compat]
 ADNLPModels = "0.3"
 Documenter = "~0.26"
-NLPModels = "0.17"
+NLPModels = "0.18"