diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0747fef5..543d78aa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -37,11 +37,11 @@ jobs:
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
 
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
           distribution: 'temurin' # Alternative distribution options are available
-          java-version: 11
+          java-version: 17
 
       - name: Decrypt Secrets
         run: sh .github/workflows/decrypt.sh
diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 8c2a7b25..fbf66c97 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -44,12 +44,12 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      # (2) JDK 11 세팅
-      - name: Set up JDK 11
+      # (2) JDK 17 세팅
+      - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
-          java-version: '11'
+          java-version: '17'
 
       # (3) firebase secret decrypt
       - name: Decrypt Secrets
diff --git a/build.gradle b/build.gradle
index 4241aecc..9672968a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ plugins {
 
 group = 'com.kustacks'
 version = '1.1.2'
-sourceCompatibility = '11'
+sourceCompatibility = '17'
 
 configurations {
 	compileOnly {
diff --git a/system.properties b/system.properties
index 180a2734..eafd676c 100644
--- a/system.properties
+++ b/system.properties
@@ -1 +1 @@
-java.runtime.version=11
\ No newline at end of file
+java.runtime.version=17