diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index ed910999..29c93eb5 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -34,9 +34,9 @@ jobs:
         # Use npm install instead of npm ci to correctly resolve platform-specific
         # optional dependencies (e.g., @tailwindcss/oxide, lightningcss binaries)
         # Increase Node memory limit to prevent OOM during install
-        run: npm install
+        run: npm install --prefer-offline
         env:
-          NODE_OPTIONS: --max_old_space_size=4096
+          NODE_OPTIONS: --max_old_space_size=6144
 
       - name: Install Linux native bindings
         # Workaround for npm optional dependencies bug (npm/cli#4828)
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 4105ee6a..8a9dcfdf 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -33,9 +33,9 @@ jobs:
         # Use npm install instead of npm ci to correctly resolve platform-specific
         # optional dependencies (e.g., @tailwindcss/oxide, lightningcss binaries)
         # Increase Node memory limit to prevent OOM during install
-        run: npm install
+        run: npm install --prefer-offline
         env:
-          NODE_OPTIONS: --max_old_space_size=4096
+          NODE_OPTIONS: --max_old_space_size=6144
 
       - name: Install Linux native bindings
         # Workaround for npm optional dependencies bug (npm/cli#4828)
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b0e078ff..384f4b06 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -52,9 +52,9 @@ jobs:
         # Use npm install instead of npm ci to correctly resolve platform-specific
         # optional dependencies (e.g., @tailwindcss/oxide, lightningcss binaries)
         # Increase Node memory limit to prevent OOM during install
-        run: npm install
+        run: npm install --prefer-offline
         env:
-          NODE_OPTIONS: --max_old_space_size=4096
+          NODE_OPTIONS: --max_old_space_size=6144
 
       - name: Install Linux native bindings
         # Workaround for npm optional dependencies bug (npm/cli#4828)
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7b341963..5b3d5ce4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,9 +33,9 @@ jobs:
         # Use npm install instead of npm ci to correctly resolve platform-specific
         # optional dependencies (e.g., @tailwindcss/oxide, lightningcss binaries)
         # Increase Node memory limit to prevent OOM during install
-        run: npm install
+        run: npm install --prefer-offline
         env:
-          NODE_OPTIONS: --max_old_space_size=4096
+          NODE_OPTIONS: --max_old_space_size=6144
 
       - name: Install Linux native bindings
         # Workaround for npm optional dependencies bug (npm/cli#4828)