diff --git a/fgbio.wdl b/fgbio.wdl
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+version 1.0
+
+# Copyright (c) 2017 Leiden University Medical Center
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+task AnnotateBamWithUmis {
+    input {
+        File inputBam
+        File inputUmi
+        String outputPath
+
+        String memory = "120G"
+        Int timeMinutes = 360
+        String javaXmx="100G"
+        String dockerImage = "quay.io/biocontainers/fgbio:1.4.0--hdfd78af_0"
+    }
+
+    command {
+        set -e 
+        mkdir -p "$(dirname ~{outputPath})"
+        fgbio -Xmx~{javaXmx} \
+        AnnotateBamWithUmis \
+        -i ~{inputBam} \
+        -f ~{inputUmi} \
+        -o ~{outputPath} 
+    }
+
+    output {
+        File outputBam = outputPath
+    }
+
+    runtime {
+        memory: memory
+        time_minutes: timeMinutes
+        docker: dockerImage
+    }
+
+    parameter_meta {
+        # inputs
+        inputBam: {description: "The input BAM file.", category: "required"}
+        inputUmi: {description: "The input fastq file with UMIs.", category: "required"}
+        outputPath: {description: "Output directory path + output file.", category: "required"}
+        javaXmx: {description: "The maximum memory available to the program. Should be lower than `memory` to accommodate JVM overhead.", category: "advanced"}
+        memory: {description: "The amount of memory this job will use.", category: "advanced"}
+        timeMinutes: {description: "The maximum amount of time the job will run in minutes.", category: "advanced"}
+        dockerImage: {description: "The docker image used for this task. Changing this may result in errors which the developers may choose not to address.", category: "advanced"}
+
+        # outputs
+        outputBam: {description: "UMI-annotated output BAM file."}
+    }
+}