diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6f9d89..3270208 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # falco changelog
 
+## falco 2.0.3 (2026-09-27)
+
+Changes:
+* Bugfix: possible race condition for very small input files (or attempting to
+  use massive numbers of threads) that so far has only been seen with very small
+  data files of the kind used for unit tests.
+
 ## falco 2.0.2 (2026-09-09)
 
 Changes:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 206812c..6604e83 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@
 # $ cmake --version
 cmake_minimum_required(VERSION 3.30)
 project(falco
-  VERSION 2.0.2
+  VERSION 2.0.3
   DESCRIPTION "A tool to assess the quality of sequence read data"
   HOMEPAGE_URL https://github.com/smithlabcode/falco
   LANGUAGES CXX
diff --git a/data/test_data/md5sum.txt b/data/test_data/md5sum.txt
index 76372d5..0997c41 100644
--- a/data/test_data/md5sum.txt
+++ b/data/test_data/md5sum.txt
@@ -1,17 +1,17 @@
-64cd41bd26bfd42e234fc3799bf245e8  bam_tiles_out/bam_1/fastqc_data.txt
-ef8c02aec6745200ffef3355981e8f04  bam_kmers_out/bam_1/fastqc_data.txt
-dc3aeeffd19458cec93b93d0a8c61bee  fastq_gz_out/fastq_gz_1/fastqc_data.txt
-55ce06b400bf48023a45d05aa997539d  groups_out/bam_1/fastqc_data.txt
-e1493086c5ddaedf20ec61f8c7a80ba4  fastq_stdin_out/fastq_stdin/fastqc_data.txt
-64cd41bd26bfd42e234fc3799bf245e8  preseq_out/bam_1/fastqc_data.txt
-1fa22a239dc71e99d0b4387c20a146e7  sam_out/sam_1/fastqc_data.txt
-64cd41bd26bfd42e234fc3799bf245e8  bam_out/bam_1/fastqc_data.txt
-7c047f91119eee2922c293c7881be1ff  fastq_bgzf_threads_out/fastq_bgzip_1/fastqc_data.txt
-244963d5c9c1dbcf609d879408611de8  fastq_bgzf_mult_out/fastq_bgzip_2/fastqc_data.txt
-7c047f91119eee2922c293c7881be1ff  fastq_bgzf_mult_out/fastq_bgzip_1/fastqc_data.txt
-64cd41bd26bfd42e234fc3799bf245e8  bam_orig_dups_out/bam_1/fastqc_data.txt
-64cd41bd26bfd42e234fc3799bf245e8  bam_mult_out/bam_1/fastqc_data.txt
-a5107edbcf8b22e443e0e2940a189ce2  bam_mult_out/bam_2/fastqc_data.txt
-7c047f91119eee2922c293c7881be1ff  fastq_bgzf_out/fastq_bgzip_1/fastqc_data.txt
-b8bee551c09cdfd885a76cc231c90cb6  sam_stdin_out/sam_stdin/fastqc_data.txt
-1e726d61c68092876e40fca069b788b2  fastq_plain_out/fastq_1/fastqc_data.txt
+e4f4641559aadc9ec7b5c50cc4aa82e3  bam_kmers_out/bam_1/fastqc_data.txt
+090a74739499d287a7aeea689a78b4e9  bam_mult_out/bam_1/fastqc_data.txt
+7cc30a3a14796140f05940485ab1bed5  bam_mult_out/bam_2/fastqc_data.txt
+090a74739499d287a7aeea689a78b4e9  bam_orig_dups_out/bam_1/fastqc_data.txt
+090a74739499d287a7aeea689a78b4e9  bam_out/bam_1/fastqc_data.txt
+090a74739499d287a7aeea689a78b4e9  bam_tiles_out/bam_1/fastqc_data.txt
+c39c504ef3e892c0104d7d73327437ac  fastq_bgzf_mult_out/fastq_bgzip_2/fastqc_data.txt
+7fb04f70aca6fe6d7b53d6c0464fa74e  fastq_bgzf_mult_out/fastq_bgzip_1/fastqc_data.txt
+7fb04f70aca6fe6d7b53d6c0464fa74e  fastq_bgzf_out/fastq_bgzip_1/fastqc_data.txt
+7fb04f70aca6fe6d7b53d6c0464fa74e  fastq_bgzf_threads_out/fastq_bgzip_1/fastqc_data.txt
+6931327d745a28fab9ba45767c83849b  fastq_gz_out/fastq_gz_1/fastqc_data.txt
+254ce276e3501feee43c14086da476c1  fastq_plain_out/fastq_1/fastqc_data.txt
+126dbf501265d4c9e9083162a57153e8  fastq_stdin_out/fastq_stdin/fastqc_data.txt
+e786bd4d9e6065904ab7b45021e7190b  groups_out/bam_1/fastqc_data.txt
+090a74739499d287a7aeea689a78b4e9  preseq_out/bam_1/fastqc_data.txt
+22573e9861f6c2fa3951712a73e4db4c  sam_out/sam_1/fastqc_data.txt
+bcea1e9f86f0917496b14ae81b6ecbc5  sam_stdin_out/sam_stdin/fastqc_data.txt
diff --git a/src/falco.cpp b/src/falco.cpp
index 6c8fc46..d9356eb 100644
--- a/src/falco.cpp
+++ b/src/falco.cpp
@@ -345,7 +345,8 @@ main(int argc, char *argv[]) {
     argv = app.ensure_utf8(argv);
     app.usage(
       std::format("Usage: {} [options] -o OUTDIR INFILES", PROJECT_NAME));
-    app.footer(std::format(description, falco::get_share_dir()));
+    if (argc >= 2)
+      app.footer(std::format(description, falco::get_share_dir()));
 
     // clang-format off
     // NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers)