diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index f4fcf2014..2c4a97a43 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -152,6 +152,8 @@ jobs:
 
     - name: Install dependencies
       if: steps.cache.outputs.cache-hit != 'true'
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     - name: Set VCPKG_PATH without hwloc
@@ -294,6 +296,8 @@ jobs:
 
     - name: Install dependencies
       if: steps.cache.outputs.cache-hit != 'true'
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     - name: Install Ninja
diff --git a/.github/workflows/reusable_basic.yml b/.github/workflows/reusable_basic.yml
index 80c9e9c4c..a6e419cba 100644
--- a/.github/workflows/reusable_basic.yml
+++ b/.github/workflows/reusable_basic.yml
@@ -307,6 +307,8 @@ jobs:
 
     - name: Install dependencies
       if: steps.cache.outputs.cache-hit != 'true'
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     # Older versions of CMake require this step to correctly locate dependencies
diff --git a/.github/workflows/reusable_codeql.yml b/.github/workflows/reusable_codeql.yml
index 2be7a75e5..0062f0040 100644
--- a/.github/workflows/reusable_codeql.yml
+++ b/.github/workflows/reusable_codeql.yml
@@ -69,6 +69,8 @@ jobs:
 
     - name: "[Win] Install vcpkg dependencies"
       if: matrix.os == 'windows-latest' && steps.cache.outputs.cache-hit != 'true'
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     - name: "[Win] Install Python requirements"
diff --git a/.github/workflows/reusable_compatibility.yml b/.github/workflows/reusable_compatibility.yml
index de991c4de..e6ece23bd 100644
--- a/.github/workflows/reusable_compatibility.yml
+++ b/.github/workflows/reusable_compatibility.yml
@@ -173,6 +173,8 @@ jobs:
     - name: Install dependencies
       if: steps.cache.outputs.cache-hit != 'true'
       working-directory: ${{github.workspace}}/tag_version
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     - name: Checkout latest UMF version
diff --git a/.github/workflows/reusable_fast.yml b/.github/workflows/reusable_fast.yml
index d1654d757..d9d2e69ff 100644
--- a/.github/workflows/reusable_fast.yml
+++ b/.github/workflows/reusable_fast.yml
@@ -130,6 +130,8 @@ jobs:
 
     - name: Install dependencies
       if: steps.cache.outputs.cache-hit != 'true'
+      env:
+        VCPKG_BINARY_SOURCES: clear
       run: vcpkg install --triplet x64-windows
 
     - name: Configure CMake
diff --git a/.github/workflows/reusable_gpu.yml b/.github/workflows/reusable_gpu.yml
index 4c7f8bb69..10f505177 100644
--- a/.github/workflows/reusable_gpu.yml
+++ b/.github/workflows/reusable_gpu.yml
@@ -96,6 +96,8 @@ jobs:
 
       - name: "[Win] Install dependencies"
         if: matrix.os == 'Windows' && steps.cache.outputs.cache-hit != 'true'
+        env:
+          VCPKG_BINARY_SOURCES: clear
         run: vcpkg install --triplet x64-windows
 
       # note: disable all providers except the one being tested