diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1277368..8b17b13 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     concurrency:
       group: ${{ github.workflow }}-${{ toJSON(matrix.env) }}-${{ github.ref }}
       cancel-in-progress: true
@@ -69,7 +69,7 @@ jobs:
       - name: Test
         run: .github/workflows/run-tests.sh
   coveralls:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
       cancel-in-progress: true
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index a2ab36f..ede4093 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -17,7 +17,7 @@ permissions:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     concurrency:
       group: ${{ github.workflow }}-${{ matrix.language }}-${{ github.ref }}
       cancel-in-progress: true
diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index b5c3728..d2e46b2 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -11,7 +11,7 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     if: github.repository == 'dbus-fuzzer/dfuzzer'
     env:
       COVERITY_SCAN_TOKEN: "${{ secrets.COVERITY_SCAN_TOKEN }}"
diff --git a/src/rand.c b/src/rand.c
index fab8610..9f7df51 100644
--- a/src/rand.c
+++ b/src/rand.c
@@ -537,8 +537,8 @@ int df_rand_string(gchar **buf, guint64 iteration)
         static const char *test_strings[] = {
                 "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
                 "%s%s%s%s%s%s%s%s%s%n%s%n%n%n%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
-                "%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n" \
-                "%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n",
+                ("%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n"
+                "%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n%n"),
                 "bomb(){ bomb|bomb & }; bomb",
                 ":1.285",
                 "org.freedesktop.foo",