diff --git a/spcd/__init__.py b/spcd/__init__.py
index 13584c8..c18166b 100644
--- a/spcd/__init__.py
+++ b/spcd/__init__.py
@@ -26,10 +26,10 @@ def clone_project_branch() -> None:
         split()
         log.info(project)
         split()
-        log.info(f"""\
-{project.url}
+        log.info("""\
+%s
 ↓
-""")
+""", project.url)
         run(
             "git",
             "clone",
@@ -83,9 +83,9 @@ def list_environment_variables() -> None:
     step("List environment variables")
     for variable, value in sorted(projects.environment.items()):
         if variable not in ["SPCD", "SPCD_SSH_KEY"]:
-            log.info(f"{variable} = {value}")
+            log.info("%s = %s", variable, value)
         else:
-            log.info(f"{variable}")
+            log.info("%s", variable)
 
 
 def main(main_file: str) -> None:
diff --git a/spcd/util.py b/spcd/util.py
index 4148e93..66fd269 100644
--- a/spcd/util.py
+++ b/spcd/util.py
@@ -43,12 +43,12 @@ def cat(file: Path) -> None:
 
 def frame(text: str) -> None:
     """Open a new frame in the log output."""
-    log.info(f"{env.SPCD_OPEN}{text}")
+    log.info("%s%s", env.SPCD_OPEN, text)
 
 
 def shut(text: str) -> None:
     """Close current frame in the log output."""
-    log.info(f"{env.SPCD_SHUT}{text}")
+    log.info("%s%s", env.SPCD_SHUT, text)
 
 
 def split() -> None:
@@ -60,5 +60,5 @@ def step(text: str) -> None:
     """Increment the step number of the current build process."""
     shell.STEP += 1
     log.info(env.SPCD_DOWN)
-    log.info(f"{env.SPCD_VERT} {shell.STEP} {text}")
+    log.info("%s %s %s", env.SPCD_VERT, shell.STEP, text)
     log.info(env.SPCD___UP)