diff --git a/tools/dockerfile/test/cxx_clang_19_x64/Dockerfile b/tools/dockerfile/test/cxx_clang_19_x64/Dockerfile
index 6a3c3933375b5..c4ec47397298d 100644
--- a/tools/dockerfile/test/cxx_clang_19_x64/Dockerfile
+++ b/tools/dockerfile/test/cxx_clang_19_x64/Dockerfile
@@ -34,6 +34,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages
diff --git a/tools/dockerfile/test/cxx_debian12_openssl309_x64/Dockerfile b/tools/dockerfile/test/cxx_debian12_openssl309_x64/Dockerfile
index 5256fc533f465..f538619705ad0 100644
--- a/tools/dockerfile/test/cxx_debian12_openssl309_x64/Dockerfile
+++ b/tools/dockerfile/test/cxx_debian12_openssl309_x64/Dockerfile
@@ -73,6 +73,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages
diff --git a/tools/dockerfile/test/cxx_gcc_14_x64/Dockerfile b/tools/dockerfile/test/cxx_gcc_14_x64/Dockerfile
index 42cdc4c70735d..0b069d7aee751 100644
--- a/tools/dockerfile/test/cxx_gcc_14_x64/Dockerfile
+++ b/tools/dockerfile/test/cxx_gcc_14_x64/Dockerfile
@@ -34,6 +34,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages
diff --git a/tools/dockerfile/test/php8_debian12_arm64/Dockerfile b/tools/dockerfile/test/php8_debian12_arm64/Dockerfile
index e350e894e3544..c46a482785fc7 100644
--- a/tools/dockerfile/test/php8_debian12_arm64/Dockerfile
+++ b/tools/dockerfile/test/php8_debian12_arm64/Dockerfile
@@ -73,6 +73,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages
diff --git a/tools/dockerfile/test/php8_debian12_x64/Dockerfile b/tools/dockerfile/test/php8_debian12_x64/Dockerfile
index bdf70b5ce87a9..b874f7c8dee66 100644
--- a/tools/dockerfile/test/php8_debian12_x64/Dockerfile
+++ b/tools/dockerfile/test/php8_debian12_x64/Dockerfile
@@ -73,6 +73,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages
diff --git a/tools/dockerfile/test/php8_zts_debian12_x64/Dockerfile b/tools/dockerfile/test/php8_zts_debian12_x64/Dockerfile
index 5043704f96b57..57efce6941996 100644
--- a/tools/dockerfile/test/php8_zts_debian12_x64/Dockerfile
+++ b/tools/dockerfile/test/php8_zts_debian12_x64/Dockerfile
@@ -38,6 +38,7 @@ RUN apt-get update && apt-get install -y \
   python3-pip \
   python3-setuptools \
   python3-yaml \
+  python3-mako \
   && apt-get clean
 
 # use pinned version of pip to avoid sudden breakages