diff --git a/fuzzers/libafl/builder.Dockerfile b/fuzzers/libafl/builder.Dockerfile
index ff74ed055..cef4659cc 100644
--- a/fuzzers/libafl/builder.Dockerfile
+++ b/fuzzers/libafl/builder.Dockerfile
@@ -38,7 +38,7 @@ RUN apt-get update && \
 RUN git clone https://github.com/AFLplusplus/LibAFL /libafl
 
 # Checkout a current commit
-RUN cd /libafl && git pull && git checkout 324db072a2f0a25f4e891d8a008a2feff240fb79 || true
+RUN cd /libafl && git pull && git checkout b20fda2a4ada2a6462718dc661e139e6c7a29807 || true
 # Note that due a nightly bug it is currently fixed to a known version on top!
 
 # Compile libafl.
diff --git a/fuzzers/libafl/fuzzer.py b/fuzzers/libafl/fuzzer.py
index 9753e1fdb..52cb1a2e5 100755
--- a/fuzzers/libafl/fuzzer.py
+++ b/fuzzers/libafl/fuzzer.py
@@ -65,5 +65,7 @@ def fuzz(input_corpus, output_corpus, target_binary):
     if dictionary_path:
         command += (['-x', dictionary_path])
     command += (['-o', output_corpus, '-i', input_corpus])
+    fuzzer_env = os.environ.copy()
+    fuzzer_env['LD_PRELOAD']='/usr/lib/x86_64-linux-gnu/libjemalloc.so.2'
     print(command)
-    subprocess.check_call(command, cwd=os.environ['OUT'])
+    subprocess.check_call(command, cwd=os.environ['OUT'], env=fuzzer_env)
diff --git a/fuzzers/libafl/runner.Dockerfile b/fuzzers/libafl/runner.Dockerfile
index 7aa1da8e4..f0c5eb6cc 100644
--- a/fuzzers/libafl/runner.Dockerfile
+++ b/fuzzers/libafl/runner.Dockerfile
@@ -14,6 +14,8 @@
 
 FROM gcr.io/fuzzbench/base-image
 
+RUN apt install libjemalloc2
+
 # This makes interactive docker runs painless:
 ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/out"
 #ENV AFL_MAP_SIZE=2621440