diff --git a/.projenrc.ts b/.projenrc.ts
index b2bb1cc..aa8440a 100644
--- a/.projenrc.ts
+++ b/.projenrc.ts
@@ -37,7 +37,7 @@ const githubActionPinnedVersions = {
 const inputs = {
   cdktfVersion: {
     description: "The version of CDKTF to use",
-    default: "0.20.1",
+    default: "0.20.3",
     required: false,
     type: "string",
   },
diff --git a/README.md b/README.md
index 3e87a9f..888806f 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ The Terraform CDK GitHub Action allows you to run CDKTF as part of your CI/CD wo
 
 | parameter | description | required | default |
 | --- | --- | --- | --- |
-| cdktfVersion | The version of CDKTF to use | `false` | 0.20.1 |
+| cdktfVersion | The version of CDKTF to use | `false` | 0.20.3 |
 | terraformVersion | The version of Terraform to use | `false` | 1.7.0 |
 | workingDirectory | The directory to use for the project | `false` | ./ |
 | mode | What action to take: `synth-only` runs only the synthesis, `plan-only` only runs a plan, `auto-approve-apply` runs a plan and then performs an apply, `auto-approve-destroy` runs a plan and then performs a destroy | `true` |  |
@@ -59,7 +59,7 @@ jobs:
       - name: Run Terraform CDK
         uses: hashicorp/terraform-cdk-action@v3
         with:
-          cdktfVersion: 0.20.1
+          cdktfVersion: 0.20.3
           terraformVersion: 1.7.0
           mode: plan-only
           stackName: my-stack
@@ -107,7 +107,7 @@ jobs:
       - name: Run Terraform CDK
         uses: hashicorp/terraform-cdk-action@v3
         with:
-          cdktfVersion: 0.20.1
+          cdktfVersion: 0.20.3
           terraformVersion: 1.7.0
           mode: auto-approve-apply
           stackName: my-stack
@@ -151,7 +151,7 @@ jobs:
       - name: Test the synth
         uses: hashicorp/terraform-cdk-action@v3
         with:
-          cdktfVersion: 0.20.1
+          cdktfVersion: 0.20.3
           terraformVersion: 1.7.0
           mode: synth-only
           stackName: my-stack
diff --git a/action.yml b/action.yml
index 4ac0d16..b299371 100644
--- a/action.yml
+++ b/action.yml
@@ -12,7 +12,7 @@ branding:
 inputs:
   cdktfVersion:
     description: The version of CDKTF to use
-    default: 0.20.1
+    default: 0.20.3
     required: false
   terraformVersion:
     description: The version of Terraform to use