diff --git a/ci/builders/linux_android_debug_engine.json b/ci/builders/linux_android_debug_engine.json
index e004a47b6822f..07be90ab6c690 100644
--- a/ci/builders/linux_android_debug_engine.json
+++ b/ci/builders/linux_android_debug_engine.json
@@ -33,7 +33,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for android_jit_release_x86",
                     "parameters": [
                         "--variant",
@@ -115,7 +115,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for android_debug",
                     "parameters": [
                         "--variant",
diff --git a/ci/builders/linux_host_engine.json b/ci/builders/linux_host_engine.json
index a1835760f5f74..957b79f1759e8 100644
--- a/ci/builders/linux_host_engine.json
+++ b/ci/builders/linux_host_engine.json
@@ -52,7 +52,7 @@
           },
           "tests": [
             {
-                "language": "python",
+                "language": "python3",
                 "name": "Host Tests for host_debug_impeller_vulkan",
                 "parameters": [
                     "--variant",
@@ -144,7 +144,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for host_profile",
                     "parameters": [
                         "--variant",
@@ -194,7 +194,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for host_release",
                     "parameters": [
                         "--variant",
diff --git a/ci/builders/mac_host_engine.json b/ci/builders/mac_host_engine.json
index e33bf9e2201f6..a5957064929d0 100644
--- a/ci/builders/mac_host_engine.json
+++ b/ci/builders/mac_host_engine.json
@@ -79,7 +79,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for host_profile",
                     "parameters": [
                         "--variant",
diff --git a/ci/builders/mac_ios_engine.json b/ci/builders/mac_ios_engine.json
index 68fc73f63ba68..9ae1f41b812bb 100644
--- a/ci/builders/mac_ios_engine.json
+++ b/ci/builders/mac_ios_engine.json
@@ -87,7 +87,7 @@
                     "out/ios_debug_sim_arm64"
                 ],
                 "script": "flutter/sky/tools/create_full_ios_framework.py",
-                "language": "python"
+                "language": "python3"
             },
             {
                 "name": "obj-c-doc",
diff --git a/ci/builders/mac_ios_engine_profile.json b/ci/builders/mac_ios_engine_profile.json
index ee762339ded0b..2d9891355a021 100644
--- a/ci/builders/mac_ios_engine_profile.json
+++ b/ci/builders/mac_ios_engine_profile.json
@@ -83,7 +83,7 @@
                     "out/ios_debug_sim_arm64"
                 ],
                 "script": "flutter/sky/tools/create_full_ios_framework.py",
-                "language": "python"
+                "language": "python3"
             }
         ]
     },
diff --git a/ci/builders/mac_ios_engine_release.json b/ci/builders/mac_ios_engine_release.json
index 269dd67d0e8cb..2de17631cf171 100644
--- a/ci/builders/mac_ios_engine_release.json
+++ b/ci/builders/mac_ios_engine_release.json
@@ -85,7 +85,7 @@
                     "--strip"
                 ],
                 "script": "flutter/sky/tools/create_full_ios_framework.py",
-                "language": "python"
+                "language": "python3"
             },
             {
                 "name": "release-nobitcode-FlutterMacOS.framework",
@@ -102,7 +102,7 @@
                     "--strip"
                 ],
                 "script": "flutter/sky/tools/create_full_ios_framework.py",
-                "language": "python"
+                "language": "python3"
             },
             {
                 "name": "Release-macos-gen-snapshots",
@@ -113,7 +113,7 @@
                     "out/ios_release"
                 ],
                 "script": "flutter/sky/tools/create_macos_gen_snapshots.py",
-                "language": "python"
+                "language": "python3"
             }
         ]
     },
diff --git a/ci/builders/windows_host_engine.json b/ci/builders/windows_host_engine.json
index fa23d8c624239..ad48a3e6433ff 100644
--- a/ci/builders/windows_host_engine.json
+++ b/ci/builders/windows_host_engine.json
@@ -43,7 +43,7 @@
             },
             "tests": [
                 {
-                    "language": "python",
+                    "language": "python3",
                     "name": "Host Tests for host_debug",
                     "parameters": [
                         "--variant",