diff --git a/.github/workflows/base-tests-linux.yml b/.github/workflows/base-tests-linux.yml
index 71128e4..375b8e6 100644
--- a/.github/workflows/base-tests-linux.yml
+++ b/.github/workflows/base-tests-linux.yml
@@ -42,9 +42,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
             'omsimulator'
diff --git a/.github/workflows/base-tests-windows.yml b/.github/workflows/base-tests-windows.yml
index 19426ef..5d45bc7 100644
--- a/.github/workflows/base-tests-windows.yml
+++ b/.github/workflows/base-tests-windows.yml
@@ -45,9 +45,9 @@ jobs:
         shell: pwsh
 
       # Setup OpenModelica for OMJulia.jl
-      - uses: OpenModelica/setup-openmodelica@v1
+      - uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
       - run: |
           which omc
           omc --version
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 0dc576f..fd65724 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -42,9 +42,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
       - run: |
diff --git a/.github/workflows/example-IEEE14.yml b/.github/workflows/example-IEEE14.yml
index c50775b..4d10d2a 100644
--- a/.github/workflows/example-IEEE14.yml
+++ b/.github/workflows/example-IEEE14.yml
@@ -63,9 +63,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
           libraries: |
@@ -90,4 +90,3 @@ jobs:
         run: |
           cd examples/IEEE14
           julia --project=. -e 'include("scripts/genAllData.jl"); include("scripts/trainFlux.jl"); include("scripts/trainTensorflow.jl");'
-
diff --git a/.github/workflows/example-scalable-translation.yml b/.github/workflows/example-scalable-translation.yml
index 1551656..8200e15 100644
--- a/.github/workflows/example-scalable-translation.yml
+++ b/.github/workflows/example-scalable-translation.yml
@@ -52,9 +52,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
             'omsimulator'
diff --git a/.github/workflows/example-simple-loop-proximity.yml b/.github/workflows/example-simple-loop-proximity.yml
index f7fd0c8..b4af5d9 100644
--- a/.github/workflows/example-simple-loop-proximity.yml
+++ b/.github/workflows/example-simple-loop-proximity.yml
@@ -45,9 +45,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
             'omsimulator'
diff --git a/.github/workflows/example-simple-loop.yml b/.github/workflows/example-simple-loop.yml
index 9abe5cc..ae28882 100644
--- a/.github/workflows/example-simple-loop.yml
+++ b/.github/workflows/example-simple-loop.yml
@@ -45,9 +45,9 @@ jobs:
           rm ${{ matrix.ort_archieve_name }}
 
       - name: Setup OpenModelica
-        uses: OpenModelica/setup-openmodelica@v1
+        uses: OpenModelica/setup-openmodelica@v1.0.2
         with:
-          version: 'nightly'
+          version: '1.23.1'
           packages: |
             'omc'
             'omsimulator'
diff --git a/Project.toml b/Project.toml
index 65c19ce..915143c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -34,7 +34,8 @@ PlottingMakieExt = "CairoMakie"
 CairoMakie = "0.10"
 DataFrames = "0.19.4, 0.20, 0.21, 0.22, 1"
 FMI = ">=0.13"
-FMIImport = ">=0.16"
+FMIImport = "^0.16"
+FMICore = "^0.20.1"
 Requires = ">=1"
 julia = ">=1.9"