diff --git a/.github/workflows/release-runtime-interface-client.yml b/.github/workflows/release-runtime-interface-client.yml
index e41dcfc6..1a00b2f3 100644
--- a/.github/workflows/release-runtime-interface-client.yml
+++ b/.github/workflows/release-runtime-interface-client.yml
@@ -74,6 +74,14 @@ jobs:
 
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
+      - name: Cache Maven repository
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       # Use the CodeBuild image's preinstalled Corretto 8. The image ships it at
       # $JAVA_8_HOME but defaults JAVA_HOME to Java 25, so point JAVA_HOME/PATH at
       # 8. Avoids actions/setup-java, which fetches from corretto.github.io +
@@ -163,6 +171,14 @@ jobs:
         with:
           fetch-depth: 0   # full history for tagging/pushing
 
+      - name: Cache Maven repository
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       # Use the CodeBuild image's preinstalled Corretto 8. The image ships it at
       # $JAVA_8_HOME but defaults JAVA_HOME to Java 25, so point JAVA_HOME/PATH at
       # 8. Avoids actions/setup-java, which fetches from corretto.github.io +
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7ff834e5..34c5e60c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -85,6 +85,14 @@ jobs:
         with:
           fetch-depth: 0   # full history for tagging/pushing
 
+      - name: Cache Maven repository
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       # Use the CodeBuild image's preinstalled Corretto 8. The image ships it at
       # $JAVA_8_HOME but defaults JAVA_HOME to Java 25, so point JAVA_HOME/PATH at
       # 8. Avoids actions/setup-java, which fetches from corretto.github.io +