diff --git a/crates/executors/src/executors/amp.rs b/crates/executors/src/executors/amp.rs
index 9c256ee0..23c746e3 100644
--- a/crates/executors/src/executors/amp.rs
+++ b/crates/executors/src/executors/amp.rs
@@ -33,7 +33,7 @@ pub struct Amp {
 
 impl Amp {
     fn build_command_builder(&self) -> CommandBuilder {
-        let mut builder = CommandBuilder::new("npx -y @sourcegraph/amp@latest")
+        let mut builder = CommandBuilder::new("npx -y @sourcegraph/amp@0.0.1758615753-ge2e2fb")
             .params(["--execute", "--stream-json"]);
         if self.dangerously_allow_all.unwrap_or(false) {
             builder = builder.extend_params(["--dangerously-allow-all"]);
diff --git a/crates/executors/src/executors/claude.rs b/crates/executors/src/executors/claude.rs
index 0aa4f723..83a4e2be 100644
--- a/crates/executors/src/executors/claude.rs
+++ b/crates/executors/src/executors/claude.rs
@@ -39,9 +39,9 @@ const CONFIRM_HOOK_SCRIPT: &str = include_str!("./hooks/confirm.py");
 
 fn base_command(claude_code_router: bool) -> &'static str {
     if claude_code_router {
-        "npx -y @musistudio/claude-code-router code"
+        "npx -y @musistudio/claude-code-router@1.0.49 code"
     } else {
-        "npx -y @anthropic-ai/claude-code@latest"
+        "npx -y @anthropic-ai/claude-code@1.0.120"
     }
 }
 
diff --git a/crates/executors/src/executors/gemini.rs b/crates/executors/src/executors/gemini.rs
index f0c1a09d..dbb34472 100644
--- a/crates/executors/src/executors/gemini.rs
+++ b/crates/executors/src/executors/gemini.rs
@@ -36,7 +36,7 @@ pub enum GeminiModel {
 
 impl GeminiModel {
     fn base_command(&self) -> &'static str {
-        "npx -y @google/gemini-cli@latest"
+        "npx -y @google/gemini-cli@0.5.5"
     }
 
     fn build_command_builder(&self) -> CommandBuilder {
diff --git a/crates/executors/src/executors/opencode.rs b/crates/executors/src/executors/opencode.rs
index 562eadc3..f3ea2f92 100644
--- a/crates/executors/src/executors/opencode.rs
+++ b/crates/executors/src/executors/opencode.rs
@@ -108,7 +108,7 @@ pub struct Opencode {
 
 impl Opencode {
     fn build_command_builder(&self) -> CommandBuilder {
-        let mut builder = CommandBuilder::new("npx -y opencode-ai@latest run").params([
+        let mut builder = CommandBuilder::new("npx -y opencode-ai@0.11.1 run").params([
             "--print-logs",
             "--log-level",
             "ERROR",
diff --git a/crates/executors/src/executors/qwen.rs b/crates/executors/src/executors/qwen.rs
index cfdbd787..f6fb6098 100644
--- a/crates/executors/src/executors/qwen.rs
+++ b/crates/executors/src/executors/qwen.rs
@@ -26,7 +26,7 @@ pub struct QwenCode {
 
 impl QwenCode {
     fn build_command_builder(&self) -> CommandBuilder {
-        let mut builder = CommandBuilder::new("npx -y @qwen-code/qwen-code@latest");
+        let mut builder = CommandBuilder::new("npx -y @qwen-code/qwen-code@0.0.12");
 
         if self.yolo.unwrap_or(false) {
             builder = builder.extend_params(["--yolo"]);