diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index f990c5f18..6c0581ca8 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -170,7 +170,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@v3.30.5
+        uses: lukka/get-cmake@v3.31.0
       - name: cmake
         run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -DJSONCONS_BUILD_TESTS=On 
       - name: build
@@ -189,7 +189,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@v3.30.5
+        uses: lukka/get-cmake@v3.31.0
       - name: cmake
         run: cmake -S . -B build -DJSONCONS_SANITIZE=ON -DCMAKE_BUILD_TYPE=Debug -DJSONCONS_BUILD_TESTS=On 
       - name: build
@@ -210,7 +210,7 @@ jobs:
         run: apt-get update ; apt-get install -y unzip git
       - uses: actions/checkout@v4
       - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@v3.30.5
+        uses: lukka/get-cmake@v3.31.0
       - name: cmake
         run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DJSONCONS_BUILD_TESTS=On 
       - name: build
@@ -231,7 +231,7 @@ jobs:
         run: apt-get update ; apt-get install -y unzip git
       - uses: actions/checkout@v4
       - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@v3.30.5
+        uses: lukka/get-cmake@v3.31.0
       - name: cmake
         run: cmake -S . -B build -DJSONCONS_SANITIZE=ON -DCMAKE_BUILD_TYPE=Debug -DJSONCONS_BUILD_TESTS=On 
       - name: build