diff --git a/base-action/action.yml b/base-action/action.yml
index 12b5115..3b09717 100644
--- a/base-action/action.yml
+++ b/base-action/action.yml
@@ -124,7 +124,7 @@ runs:
         PATH_TO_CLAUDE_CODE_EXECUTABLE: ${{ inputs.path_to_claude_code_executable }}
       run: |
         if [ -z "$PATH_TO_CLAUDE_CODE_EXECUTABLE" ]; then
-          CLAUDE_CODE_VERSION="2.1.72"
+          CLAUDE_CODE_VERSION="2.1.73"
           echo "Installing Claude Code v${CLAUDE_CODE_VERSION}..."
           for attempt in 1 2 3; do
             echo "Installation attempt $attempt..."
diff --git a/base-action/bun.lock b/base-action/bun.lock
index c4882cd..c8c25a6 100644
--- a/base-action/bun.lock
+++ b/base-action/bun.lock
@@ -6,7 +6,7 @@
       "name": "@anthropic-ai/claude-code-base-action",
       "dependencies": {
         "@actions/core": "^1.10.1",
-        "@anthropic-ai/claude-agent-sdk": "^0.2.72",
+        "@anthropic-ai/claude-agent-sdk": "^0.2.73",
         "shell-quote": "^1.8.3",
       },
       "devDependencies": {
@@ -27,7 +27,7 @@
 
     "@actions/io": ["@actions/io@1.1.3", "", {}, "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q=="],
 
-    "@anthropic-ai/claude-agent-sdk": ["@anthropic-ai/claude-agent-sdk@0.2.72", "", { "optionalDependencies": { "@img/sharp-darwin-arm64": "^0.34.2", "@img/sharp-darwin-x64": "^0.34.2", "@img/sharp-linux-arm": "^0.34.2", "@img/sharp-linux-arm64": "^0.34.2", "@img/sharp-linux-x64": "^0.34.2", "@img/sharp-linuxmusl-arm64": "^0.34.2", "@img/sharp-linuxmusl-x64": "^0.34.2", "@img/sharp-win32-arm64": "^0.34.2", "@img/sharp-win32-x64": "^0.34.2" }, "peerDependencies": { "zod": "^4.0.0" } }, "sha512-GR3QaLRCoWO5DkRknaaCH6zzmUNZ3E6VckEKNE7EO5R7qDBexQe9tDKag257pji2NenTrnBDMxznoZrhNCRTzA=="],
+    "@anthropic-ai/claude-agent-sdk": ["@anthropic-ai/claude-agent-sdk@0.2.73", "", { "optionalDependencies": { "@img/sharp-darwin-arm64": "^0.34.2", "@img/sharp-darwin-x64": "^0.34.2", "@img/sharp-linux-arm": "^0.34.2", "@img/sharp-linux-arm64": "^0.34.2", "@img/sharp-linux-x64": "^0.34.2", "@img/sharp-linuxmusl-arm64": "^0.34.2", "@img/sharp-linuxmusl-x64": "^0.34.2", "@img/sharp-win32-arm64": "^0.34.2", "@img/sharp-win32-x64": "^0.34.2" }, "peerDependencies": { "zod": "^4.0.0" } }, "sha512-JrHeMl93Q5ai9GMPAffQkSisbbDvD1skU2x6sf6WRzEZw0sK6aTG+XSiZHY2F5aSrfd4G2qUogLHEm6Y8obyOQ=="],
 
     "@fastify/busboy": ["@fastify/busboy@2.1.1", "", {}, "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA=="],
 
diff --git a/base-action/package.json b/base-action/package.json
index fd56b2e..6907010 100644
--- a/base-action/package.json
+++ b/base-action/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@actions/core": "^1.10.1",
-    "@anthropic-ai/claude-agent-sdk": "^0.2.72",
+    "@anthropic-ai/claude-agent-sdk": "^0.2.73",
     "shell-quote": "^1.8.3"
   },
   "devDependencies": {
diff --git a/bun.lock b/bun.lock
index 65fb7b8..4edc2ad 100644
--- a/bun.lock
+++ b/bun.lock
@@ -7,7 +7,7 @@
       "dependencies": {
         "@actions/core": "^1.10.1",
         "@actions/github": "^6.0.1",
-        "@anthropic-ai/claude-agent-sdk": "^0.2.72",
+        "@anthropic-ai/claude-agent-sdk": "^0.2.73",
         "@modelcontextprotocol/sdk": "^1.11.0",
         "@octokit/graphql": "^8.2.2",
         "@octokit/rest": "^21.1.1",
@@ -37,7 +37,7 @@
 
     "@actions/io": ["@actions/io@1.1.3", "", {}, "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q=="],
 
-    "@anthropic-ai/claude-agent-sdk": ["@anthropic-ai/claude-agent-sdk@0.2.72", "", { "optionalDependencies": { "@img/sharp-darwin-arm64": "^0.34.2", "@img/sharp-darwin-x64": "^0.34.2", "@img/sharp-linux-arm": "^0.34.2", "@img/sharp-linux-arm64": "^0.34.2", "@img/sharp-linux-x64": "^0.34.2", "@img/sharp-linuxmusl-arm64": "^0.34.2", "@img/sharp-linuxmusl-x64": "^0.34.2", "@img/sharp-win32-arm64": "^0.34.2", "@img/sharp-win32-x64": "^0.34.2" }, "peerDependencies": { "zod": "^4.0.0" } }, "sha512-GR3QaLRCoWO5DkRknaaCH6zzmUNZ3E6VckEKNE7EO5R7qDBexQe9tDKag257pji2NenTrnBDMxznoZrhNCRTzA=="],
+    "@anthropic-ai/claude-agent-sdk": ["@anthropic-ai/claude-agent-sdk@0.2.73", "", { "optionalDependencies": { "@img/sharp-darwin-arm64": "^0.34.2", "@img/sharp-darwin-x64": "^0.34.2", "@img/sharp-linux-arm": "^0.34.2", "@img/sharp-linux-arm64": "^0.34.2", "@img/sharp-linux-x64": "^0.34.2", "@img/sharp-linuxmusl-arm64": "^0.34.2", "@img/sharp-linuxmusl-x64": "^0.34.2", "@img/sharp-win32-arm64": "^0.34.2", "@img/sharp-win32-x64": "^0.34.2" }, "peerDependencies": { "zod": "^4.0.0" } }, "sha512-JrHeMl93Q5ai9GMPAffQkSisbbDvD1skU2x6sf6WRzEZw0sK6aTG+XSiZHY2F5aSrfd4G2qUogLHEm6Y8obyOQ=="],
 
     "@fastify/busboy": ["@fastify/busboy@2.1.1", "", {}, "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA=="],
 
diff --git a/package.json b/package.json
index a99d661..09cdff5 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@actions/core": "^1.10.1",
     "@actions/github": "^6.0.1",
-    "@anthropic-ai/claude-agent-sdk": "^0.2.72",
+    "@anthropic-ai/claude-agent-sdk": "^0.2.73",
     "@modelcontextprotocol/sdk": "^1.11.0",
     "@octokit/graphql": "^8.2.2",
     "@octokit/rest": "^21.1.1",
diff --git a/src/entrypoints/run.ts b/src/entrypoints/run.ts
index 5280a29..8a42776 100644
--- a/src/entrypoints/run.ts
+++ b/src/entrypoints/run.ts
@@ -51,7 +51,7 @@ async function installClaudeCode(): Promise<void> {
     return;
   }
 
-  const claudeCodeVersion = "2.1.72";
+  const claudeCodeVersion = "2.1.73";
   console.log(`Installing Claude Code v${claudeCodeVersion}...`);
 
   for (let attempt = 1; attempt <= 3; attempt++) {