diff --git a/projects/wolfmqtt/Dockerfile b/projects/wolfmqtt/Dockerfile
index 8f4948654..68e3e0888 100644
--- a/projects/wolfmqtt/Dockerfile
+++ b/projects/wolfmqtt/Dockerfile
@@ -15,7 +15,7 @@
 ################################################################################
 
 FROM gcr.io/oss-fuzz-base/base-builder
-RUN apt-get update && apt-get install -y make autoconf automake libtool
+RUN apt-get update && apt-get install -y make autoconf automake libtool bsdmainutils
 RUN git clone --depth 1 https://github.com/wolfSSL/wolfssl.git
 RUN git clone --depth 1 https://github.com/wolfSSL/wolfMQTT.git wolfmqtt
 RUN git clone --depth 1 https://github.com/guidovranken/wolfmqtt-fuzzers.git
diff --git a/projects/wolfssl/Dockerfile b/projects/wolfssl/Dockerfile
index a08f99746..c19e0845c 100644
--- a/projects/wolfssl/Dockerfile
+++ b/projects/wolfssl/Dockerfile
@@ -18,7 +18,7 @@
 # Please fix failure and upgrade.
 FROM gcr.io/oss-fuzz-base/base-builder@sha256:111d6b9d3a52bd3392602c71dc8936c628607a7a9bc86d381db7586f9b1e840f
 
-RUN apt-get update && apt-get install -y make autoconf automake libtool zip wget python
+RUN apt-get update && apt-get install -y make autoconf automake libtool zip wget python bsdmainutils
 RUN git clone https://github.com/wolfssl/wolfssl --depth 1 $SRC/wolfssl
 RUN git clone --depth 1 https://github.com/wolfSSL/wolfssh.git
 RUN git clone --depth 1 https://github.com/guidovranken/fuzzing-headers.git