diff --git a/webserver/docker_icinga/templates/Dockerfile b/webserver/docker_icinga/templates/Dockerfile
index 5c53c359cc0da25bf1c8f79ee41a083935f0bd07..d62b0f6f8e5cb5239958d4ce2e29009302864664 100644
--- a/webserver/docker_icinga/templates/Dockerfile
+++ b/webserver/docker_icinga/templates/Dockerfile
@@ -1,12 +1,11 @@
 FROM jordan/icinga2:2.12.1
 
-# Install additional Packages (Backports needed for Golang > 1.13)
+# Install additional Packages 
 RUN apt-get update \
- && apt-get install -y -q --no-install-recommends -t buster-backports \
+ && apt-get install -y -q --no-install-recommends \
     curl \ 
     dnsutils \
     git \
-    golang \
     jq \
     libdata-validate-domain-perl \
     libdata-validate-ip-perl \
@@ -27,16 +26,26 @@ COPY notify_by_pushover.sh /opt
 RUN chmod +x /opt/*.sh
 
 # check_mqtt
-RUN cd /opt/ && git clone https://github.com/jpmens/check-mqtt.git
+RUN cd /opt/ \
+ && git clone https://github.com/jpmens/check-mqtt.git \
+ && cd /opt/check-mqtt/ \
+ && git checkout v3.0
 
 # check_rbl
-RUN cd /opt/ && git clone https://github.com/matteocorti/check_rbl.git
+RUN cd /opt/ \
+ && git clone https://github.com/matteocorti/check_rbl.git \
+ && cd /opt/check_rbl/ \
+ && git checkout v1.5.7
 
-# check_json
-RUN cd /opt/ && git clone https://github.com/asymworks/check_json.git
+# prom2json -- needed for check_metric_value
+RUN cd /opt/ \
+ && wget https://github.com/prometheus/prom2json/releases/download/v1.3.0/prom2json-1.3.0.linux-amd64.tar.gz \
+ && tar --strip-components=1 -xzvf prom2json-1.3.0.linux-amd64.tar.gz \
+ && chmod ugo+x /opt/prom2json
+ 
+# check_metric_value - commit from 16.12.2020
+RUN cd /opt/ \
+ && git clone https://github.com/elberfeld/check_metric_value.git \
+ && cd /opt/check_metric_value/ \
+ && git checkout b94d3c3e78497a05e3b4520d33421f37e4d77985 
 
-# prom2json (go 1.13 min reqired)
-RUN cd /opt/ && GOPATH=/opt/ go get github.com/prometheus/prom2json/cmd/prom2json
-
-# check_metric_value
-RUN cd /opt/ && git clone https://github.com/elberfeld/check_metric_value.git
diff --git a/webserver/docker_icinga/templates/etc/icinga/conf.d/commands2.conf b/webserver/docker_icinga/templates/etc/icinga/conf.d/commands2.conf
index f83a9075f38c73c8d598da367759c590fb9168e6..7ff9ab0d544d5689baea88c30be40116ac6db9ba 100644
--- a/webserver/docker_icinga/templates/etc/icinga/conf.d/commands2.conf
+++ b/webserver/docker_icinga/templates/etc/icinga/conf.d/commands2.conf
@@ -52,7 +52,7 @@ object CheckCommand "check_metric_value" {
   command = [ "/opt/check_metric_value/check_metric_value.py" ] 
 
   arguments = {
-    "-P" = "/opt/bin/prom2json"
+    "-P" = "/opt/prom2json"
     "-U" = "$metric_url$"
     "-M" = "$metric_name$"
     "-n" = "$metric_labelname$"