diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index bcc9b344..5461c227 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -32,7 +32,7 @@ jobs:
 
       - name: Cache mdbook
         id: cache-mdbook
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cargo/bin/mdbook
           key: mdbook-0.5.2-${{ runner.os }}
diff --git a/.github/workflows/eval.yml b/.github/workflows/eval.yml
index b7ea9200..846b3828 100644
--- a/.github/workflows/eval.yml
+++ b/.github/workflows/eval.yml
@@ -82,7 +82,7 @@ jobs:
 
       - name: Cache OWASP BenchmarkJava (1.2beta)
         id: cache-owasp
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: .eval-corpus/owasp_benchmark_v1.2
           key: owasp-benchmark-1.2beta
@@ -164,7 +164,7 @@ jobs:
 
       - name: Cache ${{ matrix.corpus.name }}
         id: cache-corpus
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: .eval-corpus/${{ matrix.corpus.name }}
           key: jsts-${{ matrix.corpus.name }}-${{ matrix.corpus.ref }}
@@ -300,7 +300,7 @@ jobs:
 
       - name: Cache ${{ matrix.corpus.name }}
         id: cache-corpus
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: .eval-corpus/${{ matrix.corpus.name }}
           key: polyglot-${{ matrix.corpus.name }}-${{ matrix.corpus.ref }}
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index eb24b2e4..1b24446a 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -58,7 +58,7 @@ jobs:
           npm run build
 
       - name: Restore fuzz corpus
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: fuzz/corpus/${{ matrix.target }}
           key: fuzz-corpus-${{ matrix.target }}-${{ github.sha }}