diff --git a/tools/text_processing_deployment/Dockerfile b/tools/text_processing_deployment/Dockerfile
index be6fedcda..972bab75e 100644
--- a/tools/text_processing_deployment/Dockerfile
+++ b/tools/text_processing_deployment/Dockerfile
@@ -16,7 +16,7 @@
 # Dockerfile for C++ (inverse) text normalization backend Sparrowhawk https://github.com/google/sparrowhawk
 
 # set base image (host OS)
-FROM continuumio/miniconda3 
+FROM continuumio/miniconda3:25.3.1-1
 
 
 # set the working directory in the container
diff --git a/tools/text_processing_deployment/docker/launch.sh b/tools/text_processing_deployment/docker/launch.sh
index 1bb4c78ca..debd98883 100644
--- a/tools/text_processing_deployment/docker/launch.sh
+++ b/tools/text_processing_deployment/docker/launch.sh
@@ -50,7 +50,13 @@ elif [[ $MODE == "test_itn_grammars" ]]; then
 fi
 
 echo $MOUNTS
-docker run -it -e LANG=C.UTF-8 -e LC_ALL=C.UTF-8 --rm \
+# Use -it for interactive mode, -i only for test mode
+if [[ $MODE == "interactive" ]]; then
+  DOCKER_FLAGS="-it"
+else
+  DOCKER_FLAGS="-i"
+fi
+docker run $DOCKER_FLAGS -e LANG=C.UTF-8 -e LC_ALL=C.UTF-8 --rm \
   --shm-size=4g \
   --ulimit memlock=-1 \
   --ulimit stack=67108864 \