diff --git a/.github/workflows/main-build.yml b/.github/workflows/main-build.yml
index e835c49..10ca7ef 100644
--- a/.github/workflows/main-build.yml
+++ b/.github/workflows/main-build.yml
@@ -10,12 +10,12 @@ jobs:
     name: Build
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - id: setup-java-17
         name: Setup Java 17
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           distribution: adopt
           java-version: 17
diff --git a/.github/workflows/pr-build.yml b/.github/workflows/pr-build.yml
index becc7a3..7dfb00e 100644
--- a/.github/workflows/pr-build.yml
+++ b/.github/workflows/pr-build.yml
@@ -10,12 +10,12 @@ jobs:
     name: Build
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - id: setup-java-17
         name: Setup Java 17
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           distribution: adopt
           java-version: 17
diff --git a/.github/workflows/release-build.yml b/.github/workflows/release-build.yml
index 1acea74..aa7abe2 100644
--- a/.github/workflows/release-build.yml
+++ b/.github/workflows/release-build.yml
@@ -12,12 +12,12 @@ jobs:
     name: Build
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - id: setup-java-17
         name: Setup Java 17
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           distribution: adopt
           java-version: 17
diff --git a/build.gradle.kts b/build.gradle.kts
index 34108c1..c925c6e 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -26,8 +26,8 @@ tasks {
 
 description = "Java Bindings for the OpenTelemetry Protocol (OTLP)"
 
-val grpcVersion = "1.56.1"
-val protobufVersion = "3.23.4"
+val grpcVersion = "1.65.1"
+val protobufVersion = "4.27.2"
 
 repositories {
   mavenCentral()